diff --git a/idea/idea-core/src/org/jetbrains/kotlin/idea/core/script/ScriptDefinitionsManager.kt b/idea/idea-core/src/org/jetbrains/kotlin/idea/core/script/ScriptDefinitionsManager.kt
index cecdb4880dd..988c5797df3 100644
--- a/idea/idea-core/src/org/jetbrains/kotlin/idea/core/script/ScriptDefinitionsManager.kt
+++ b/idea/idea-core/src/org/jetbrains/kotlin/idea/core/script/ScriptDefinitionsManager.kt
@@ -40,8 +40,8 @@ import kotlin.concurrent.read
 import kotlin.concurrent.write
 import kotlin.script.dependencies.Environment
 import kotlin.script.dependencies.ScriptContents
-import kotlin.script.experimental.api.ScriptingEnvironment
-import kotlin.script.experimental.api.ScriptingEnvironmentParams
+import kotlin.script.experimental.api.ChainedPropertyBag
+import kotlin.script.experimental.api.ScriptingEnvironmentProperties
 import kotlin.script.experimental.definitions.ScriptDefinitionFromAnnotatedBaseClass
 import kotlin.script.experimental.dependencies.DependenciesResolver
 import kotlin.script.experimental.dependencies.ScriptDependencies
@@ -165,7 +165,7 @@ fun loadDefinitionsFromTemplates(
                 }
                 template.annotations.firstIsInstanceOrNull<kotlin.script.experimental.annotations.KotlinScript>() != null -> {
                     KotlinScriptDefinitionAdapterFromNewAPI(
-                        ScriptDefinitionFromAnnotatedBaseClass(ScriptingEnvironment(ScriptingEnvironmentParams.baseClass to template))
+                        ScriptDefinitionFromAnnotatedBaseClass(ChainedPropertyBag(ScriptingEnvironmentProperties.baseClass to template))
                     )
                 }
                 else -> {
diff --git a/libraries/examples/scripting/jvm-maven-deps/host/src/org/jetbrains/kotlin/script/examples/jvm/resolve/maven/host/host.kt b/libraries/examples/scripting/jvm-maven-deps/host/src/org/jetbrains/kotlin/script/examples/jvm/resolve/maven/host/host.kt
index 17f00f14fce..daa362e6f69 100644
--- a/libraries/examples/scripting/jvm-maven-deps/host/src/org/jetbrains/kotlin/script/examples/jvm/resolve/maven/host/host.kt
+++ b/libraries/examples/scripting/jvm-maven-deps/host/src/org/jetbrains/kotlin/script/examples/jvm/resolve/maven/host/host.kt
@@ -19,7 +19,7 @@ import kotlin.script.experimental.jvmhost.impl.KJVMCompilerImpl
 fun evalFile(scriptFile: File): ResultWithDiagnostics<EvaluationResult> {
     val scriptCompiler = JvmScriptCompiler(KJVMCompilerImpl(), DummyCompiledJvmScriptCache())
     val scriptDefinition = ScriptDefinitionFromAnnotatedBaseClass(
-        ScriptingEnvironment(ScriptingEnvironmentParams.baseClass to MyScriptWithMavenDeps::class)
+        ChainedPropertyBag(ScriptingEnvironmentProperties.baseClass to MyScriptWithMavenDeps::class)
     )
 
     val host = JvmBasicScriptingHost(
diff --git a/libraries/examples/scripting/jvm-maven-deps/script/src/org/jetbrains/kotlin/script/examples/jvm/resolve/maven/scriptDef.kt b/libraries/examples/scripting/jvm-maven-deps/script/src/org/jetbrains/kotlin/script/examples/jvm/resolve/maven/scriptDef.kt
index f1b3963841e..bc5991416f5 100644
--- a/libraries/examples/scripting/jvm-maven-deps/script/src/org/jetbrains/kotlin/script/examples/jvm/resolve/maven/scriptDef.kt
+++ b/libraries/examples/scripting/jvm-maven-deps/script/src/org/jetbrains/kotlin/script/examples/jvm/resolve/maven/scriptDef.kt
@@ -27,7 +27,7 @@ abstract class MyScriptWithMavenDeps {
 }
 
 inline fun myJvmConfig(
-    from: HeterogeneousMap = HeterogeneousMap(),
+    from: ChainedPropertyBag = ChainedPropertyBag(),
     crossinline body: JvmScriptCompileConfigurationParams.Builder.() -> Unit = {}
 ) = jvmConfigWithJavaHome(from) {
     signature<MyScriptWithMavenDeps>()
@@ -42,12 +42,12 @@ inline fun myJvmConfig(
     body()
 }
 
-class MyConfigurator(val environment: ScriptingEnvironment) : ScriptCompilationConfigurator {
+class MyConfigurator(val environment: ChainedPropertyBag) : ScriptCompilationConfigurator {
 
     private val resolver = FilesAndMavenResolver()
 
     override val defaultConfiguration = myJvmConfig {
-        add(ScriptCompileConfigurationParams.baseClass to environment[ScriptingEnvironmentParams.baseClass])
+        add(ScriptCompileConfigurationParams.baseClass to environment[ScriptingEnvironmentProperties.baseClass])
     }
 
     override suspend fun baseConfiguration(scriptSource: ScriptSource): ResultWithDiagnostics<ScriptCompileConfiguration> =
diff --git a/libraries/examples/scripting/jvm-simple-script/host/src/org/jetbrains/kotlin/script/examples/jvm/simple/host/host.kt b/libraries/examples/scripting/jvm-simple-script/host/src/org/jetbrains/kotlin/script/examples/jvm/simple/host/host.kt
index 4d5d440e9a8..651d6ff1566 100644
--- a/libraries/examples/scripting/jvm-simple-script/host/src/org/jetbrains/kotlin/script/examples/jvm/simple/host/host.kt
+++ b/libraries/examples/scripting/jvm-simple-script/host/src/org/jetbrains/kotlin/script/examples/jvm/simple/host/host.kt
@@ -15,7 +15,7 @@ import kotlin.script.experimental.jvm.*
 import kotlin.script.experimental.jvmhost.impl.KJVMCompilerImpl
 
 inline fun myJvmConfig(
-    from: HeterogeneousMap = HeterogeneousMap(),
+    from: ChainedPropertyBag = ChainedPropertyBag(),
     crossinline body: JvmScriptCompileConfigurationParams.Builder.() -> Unit = {}
 ) = jvmConfigWithJavaHome(from) {
     signature<MyScript>()
@@ -26,7 +26,7 @@ inline fun myJvmConfig(
 fun evalFile(scriptFile: File): ResultWithDiagnostics<EvaluationResult> {
     val scriptCompiler = JvmScriptCompiler(KJVMCompilerImpl(), DummyCompiledJvmScriptCache())
     val scriptDefinition = ScriptDefinitionFromAnnotatedBaseClass(
-        ScriptingEnvironment(ScriptingEnvironmentParams.baseClass to MyScript::class)
+        ChainedPropertyBag(ScriptingEnvironmentProperties.baseClass to MyScript::class)
     )
 
     val host = JvmBasicScriptingHost(
diff --git a/libraries/scripting/common/src/kotlin/script/experimental/api/scriptConfiguration.kt b/libraries/scripting/common/src/kotlin/script/experimental/api/scriptConfiguration.kt
index ccb06252eb5..410f882f87e 100644
--- a/libraries/scripting/common/src/kotlin/script/experimental/api/scriptConfiguration.kt
+++ b/libraries/scripting/common/src/kotlin/script/experimental/api/scriptConfiguration.kt
@@ -8,14 +8,14 @@
 package kotlin.script.experimental.api
 
 
-typealias ScriptCompileConfiguration = HeterogeneousMap
+typealias ScriptCompileConfiguration = ChainedPropertyBag
 
-typealias ProcessedScriptData = HeterogeneousMap
+typealias ProcessedScriptData = ChainedPropertyBag
 
 
 interface ScriptCompilationConfigurator {
 
-    // constructor(environment: ScriptingEnvironment) // the constructor is expected from implementations
+    // constructor(environment: ChainedPropertyBag) // the constructor is expected from implementations
 
     val defaultConfiguration: ScriptCompileConfiguration
 
diff --git a/libraries/scripting/common/src/kotlin/script/experimental/api/scriptConfigurationParams.kt b/libraries/scripting/common/src/kotlin/script/experimental/api/scriptConfigurationParams.kt
index 14ebb39945f..02ac0a5e0b3 100644
--- a/libraries/scripting/common/src/kotlin/script/experimental/api/scriptConfigurationParams.kt
+++ b/libraries/scripting/common/src/kotlin/script/experimental/api/scriptConfigurationParams.kt
@@ -31,21 +31,10 @@ object ScriptCompileConfigurationParams {
 
     val updateConfigurationOnSections by typedKey<Iterable<String>>()
 
-    open class Builder : HeterogeneousMapBuilder() {
+    open class Builder(parentBuilder: PropertyBagBuilder? = null) : PropertyBagBuilder(parentBuilder) {
         inline fun <reified T> signature(providedDeclarations: ProvidedDeclarations = ProvidedDeclarations.Empty) {
             add(scriptSignature to ScriptSignature(T::class, providedDeclarations))
         }
     }
 }
 
-// DSL
-inline fun scriptConfiguration(from: HeterogeneousMap = HeterogeneousMap(), body: ScriptCompileConfigurationParams.Builder.() -> Unit) =
-    ScriptCompileConfigurationParams.Builder().build(from, body)
-
-
-fun ScriptSource.toScriptCompileConfiguration(vararg pairs: Pair<TypedKey<*>, Any?>) =
-    ScriptCompileConfiguration(ScriptCompileConfigurationParams.scriptSourceFragments to ScriptSourceFragments(this, null), *pairs)
-
-fun ScriptSource?.toConfigEntry(): Pair<TypedKey<*>, Any?> =
-    ScriptCompileConfigurationParams.scriptSourceFragments to this?.let { ScriptSourceFragments(this, null) }
-
diff --git a/libraries/scripting/common/src/kotlin/script/experimental/api/scriptDefinition.kt b/libraries/scripting/common/src/kotlin/script/experimental/api/scriptDefinition.kt
index 2f0dd6123a3..16d26793119 100644
--- a/libraries/scripting/common/src/kotlin/script/experimental/api/scriptDefinition.kt
+++ b/libraries/scripting/common/src/kotlin/script/experimental/api/scriptDefinition.kt
@@ -10,9 +10,9 @@ package kotlin.script.experimental.api
 
 interface ScriptDefinition {
 
-    // constructor(environment: ScriptingEnvironment) // the constructor is expected from implementations
+    // constructor(environment: ChainedPropertyBag) // the constructor is expected from implementations
 
-    val properties: ScriptDefinitionPropertiesBag
+    val properties: ChainedPropertyBag
 
     val compilationConfigurator: ScriptCompilationConfigurator
 
diff --git a/libraries/scripting/common/src/kotlin/script/experimental/api/scriptDefinitionProperties.kt b/libraries/scripting/common/src/kotlin/script/experimental/api/scriptDefinitionProperties.kt
index 835139cb357..712f50cb70d 100644
--- a/libraries/scripting/common/src/kotlin/script/experimental/api/scriptDefinitionProperties.kt
+++ b/libraries/scripting/common/src/kotlin/script/experimental/api/scriptDefinitionProperties.kt
@@ -7,22 +7,12 @@
 
 package kotlin.script.experimental.api
 
-
-typealias ScriptDefinitionPropertiesBag = HeterogeneousMap
-
-
-object ScriptDefinitionProperties {
+object ScriptDefinitionProperties : PropertiesBase<ScriptDefinitionProperties>() {
 
     val name by typedKey<String>()
 
     val fileExtension by typedKey<String>()
 
-    val makeTitle by typedKey<(String) -> String>()
-
-    open class Builder : HeterogeneousMapBuilder() {
-        inline fun <reified T> makeTitle(noinline fn: (String) -> String) {
-            add(makeTitle to fn)
-        }
-    }
+    open class Builder(parentBuilder: PropertyBagBuilder? = null) : PropertyBagBuilder(parentBuilder)
 }
 
diff --git a/libraries/scripting/common/src/kotlin/script/experimental/api/scriptEvaluation.kt b/libraries/scripting/common/src/kotlin/script/experimental/api/scriptEvaluation.kt
index bba602d2b91..22c770f602a 100644
--- a/libraries/scripting/common/src/kotlin/script/experimental/api/scriptEvaluation.kt
+++ b/libraries/scripting/common/src/kotlin/script/experimental/api/scriptEvaluation.kt
@@ -7,7 +7,7 @@
 
 package kotlin.script.experimental.api
 
-open class ScriptEvaluationEnvironmentParams : HeterogeneousMapBuilder() {
+open class ScriptEvaluationEnvironmentParams : PropertyBagBuilder() {
     companion object {
         val implicitReceivers by typedKey<List<Any>>()
 
@@ -19,17 +19,17 @@ open class ScriptEvaluationEnvironmentParams : HeterogeneousMapBuilder() {
     }
 }
 
-inline fun scriptEvaluationEnvironment(from: HeterogeneousMap = HeterogeneousMap(), body: ScriptEvaluationEnvironmentParams.() -> Unit) =
+inline fun scriptEvaluationEnvironment(from: ChainedPropertyBag = ChainedPropertyBag(), body: ScriptEvaluationEnvironmentParams.() -> Unit) =
     ScriptEvaluationEnvironmentParams().build(from, body)
 
-typealias ScriptEvaluationEnvironment = HeterogeneousMap
+typealias ScriptEvaluationEnvironment = ChainedPropertyBag
 
 data class EvaluationResult(val returnValue: Any?, val environment: ScriptEvaluationEnvironment)
 
 // NOTE: name inconsistency: run vs evaluate
 interface ScriptEvaluator<in ScriptBase : Any> {
 
-    // constructor(environment: ScriptingEnvironment) // the constructor is expected from implementations
+    // constructor(environment: ChainedPropertyBag) // the constructor is expected from implementations
 
     suspend fun eval(
         compiledScript: CompiledScript<ScriptBase>,
diff --git a/libraries/scripting/common/src/kotlin/script/experimental/api/scriptProcessedDataParams.kt b/libraries/scripting/common/src/kotlin/script/experimental/api/scriptProcessedDataParams.kt
index dfff0d535df..4885ba5a4e2 100644
--- a/libraries/scripting/common/src/kotlin/script/experimental/api/scriptProcessedDataParams.kt
+++ b/libraries/scripting/common/src/kotlin/script/experimental/api/scriptProcessedDataParams.kt
@@ -5,7 +5,7 @@
 
 package kotlin.script.experimental.api
 
-class ProcessedScriptDataParams : HeterogeneousMapBuilder() {
+class ProcessedScriptDataParams : PropertyBagBuilder() {
     companion object {
         val annotations by typedKey<Iterable<Annotation>>()
 
@@ -13,5 +13,5 @@ class ProcessedScriptDataParams : HeterogeneousMapBuilder() {
     }
 }
 
-inline fun processedScriptData(from: HeterogeneousMap = HeterogeneousMap(), body: ProcessedScriptDataParams.() -> Unit) =
+inline fun processedScriptData(from: ChainedPropertyBag = ChainedPropertyBag(), body: ProcessedScriptDataParams.() -> Unit) =
     ProcessedScriptDataParams().build(from, body)
\ No newline at end of file
diff --git a/libraries/scripting/common/src/kotlin/script/experimental/api/scriptUtil.kt b/libraries/scripting/common/src/kotlin/script/experimental/api/scriptUtil.kt
index 403da7e7f4c..aab02c62b88 100644
--- a/libraries/scripting/common/src/kotlin/script/experimental/api/scriptUtil.kt
+++ b/libraries/scripting/common/src/kotlin/script/experimental/api/scriptUtil.kt
@@ -6,8 +6,7 @@
 package kotlin.script.experimental.api
 
 import kotlin.reflect.KProperty
-
-// copy placed into package org.jetbrains.kotlin.utils.addToStdlib as well
+import kotlin.reflect.full.primaryConstructor
 
 data class TypedKey<T>(val name: String)
 
@@ -17,23 +16,27 @@ class TypedKeyDelegate<T> {
 
 fun <T> typedKey() = TypedKeyDelegate<T>()
 
-class HeterogeneousMap(private val data: Map<TypedKey<*>, Any?> = hashMapOf()) {
-    constructor(vararg pairs: Pair<TypedKey<*>, Any?>) : this(hashMapOf(*pairs))
-    constructor(from: HeterogeneousMap, vararg pairs: Pair<TypedKey<*>, Any?>) : this(HashMap(from.data).apply { putAll(pairs) })
-    constructor(from: HeterogeneousMap, pairs: Iterable<Pair<TypedKey<*>, Any?>>) : this(HashMap(from.data).apply { putAll(pairs) })
+class ChainedPropertyBag(private val parent: ChainedPropertyBag? = null, private val data: Map<TypedKey<*>, Any?> = hashMapOf()) {
+    constructor(data: Map<TypedKey<*>, Any?>) : this(null, data)
+    constructor(parent: ChainedPropertyBag?, pairs: Iterable<Pair<TypedKey<*>, Any?>>) : this(
+        parent,
+        HashMap<TypedKey<*>, Any?>().also {
+            it.putAll(pairs)
+        })
+
+    constructor(parent: ChainedPropertyBag?, vararg pairs: Pair<TypedKey<*>, Any?>) : this(parent, hashMapOf(*pairs))
 
     operator fun <T> get(key: TypedKey<T>): T =
-        if (data.containsKey(key)) data[key] as T
-        else throw IllegalArgumentException("Unknown key $key")
+        when {
+            data.containsKey(key) -> data[key] as T
+            parent != null -> parent[key]
+            else -> throw IllegalArgumentException("Unknown key $key")
+        }
 
-    fun <T> getOrNull(key: TypedKey<T>): T? = data[key] as T?
+    fun <T> getOrNull(key: TypedKey<T>): T? = data[key] as T? ?: parent?.getOrNull(key)
 }
 
-fun HeterogeneousMap.cloneWith(vararg pairs: Pair<TypedKey<*>, Any?>) = HeterogeneousMap(this, *pairs)
-
-fun HeterogeneousMap.cloneWith(pairs: Iterable<Pair<TypedKey<*>, Any?>>) = HeterogeneousMap(this, pairs)
-
-open class HeterogeneousMapBuilder {
+open class PropertyBagBuilder(private val parentBuilder: PropertyBagBuilder? = null) {
     val pairs: MutableList<Pair<TypedKey<*>, Any?>> = arrayListOf()
 
     open operator fun <T> TypedKey<T>.invoke(v: T) {
@@ -43,9 +46,11 @@ open class HeterogeneousMapBuilder {
     fun add(pair: Pair<TypedKey<*>, Any?>) {
         pairs.add(pair)
     }
+
+    fun getAllPairs() = if (parentBuilder == null) pairs else parentBuilder.pairs + pairs
 }
 
-inline fun <T : HeterogeneousMapBuilder> T.build(from: HeterogeneousMap = HeterogeneousMap(), body: T.() -> Unit): HeterogeneousMap {
+inline fun <T : PropertyBagBuilder> T.build(parent: ChainedPropertyBag? = null, body: T.() -> Unit): ChainedPropertyBag {
     body()
-    return HeterogeneousMap(from, pairs)
+    return ChainedPropertyBag(parent, getAllPairs())
 }
diff --git a/libraries/scripting/common/src/kotlin/script/experimental/api/scriptingEnvironment.kt b/libraries/scripting/common/src/kotlin/script/experimental/api/scriptingEnvironment.kt
index 3c4ddcc3dd0..3a233777ea5 100644
--- a/libraries/scripting/common/src/kotlin/script/experimental/api/scriptingEnvironment.kt
+++ b/libraries/scripting/common/src/kotlin/script/experimental/api/scriptingEnvironment.kt
@@ -7,13 +7,11 @@ package kotlin.script.experimental.api
 
 import kotlin.reflect.KClass
 
-typealias ScriptingEnvironment = HeterogeneousMap
-
-object ScriptingEnvironmentParams {
+object ScriptingEnvironmentProperties {
 
     // required by definitions that extract data from script base class annotations
     val baseClass by typedKey<KClass<*>>()
 
-    open class Builder : HeterogeneousMapBuilder()
+    open class Builder(parentBuilder: PropertyBagBuilder? = null) : PropertyBagBuilder(parentBuilder)
 }
 
diff --git a/libraries/scripting/common/src/kotlin/script/experimental/basic/basicScript.kt b/libraries/scripting/common/src/kotlin/script/experimental/basic/basicScript.kt
index 05d5c2e3a56..d9554a2b73e 100644
--- a/libraries/scripting/common/src/kotlin/script/experimental/basic/basicScript.kt
+++ b/libraries/scripting/common/src/kotlin/script/experimental/basic/basicScript.kt
@@ -8,10 +8,10 @@ package kotlin.script.experimental.basic
 import kotlin.script.experimental.api.*
 
 
-class PassThroughCompilationConfigurator(val environment: ScriptingEnvironment) : ScriptCompilationConfigurator {
+class PassThroughCompilationConfigurator(val environment: ChainedPropertyBag) : ScriptCompilationConfigurator {
 
     override val defaultConfiguration = ScriptCompileConfiguration(
-        ScriptCompileConfigurationParams.baseClass to environment[ScriptingEnvironmentParams.baseClass]
+        ScriptCompileConfigurationParams.baseClass to environment[ScriptingEnvironmentProperties.baseClass]
     )
 
     override suspend fun baseConfiguration(scriptSource: ScriptSource): ResultWithDiagnostics<ScriptCompileConfiguration> =
@@ -24,7 +24,7 @@ class PassThroughCompilationConfigurator(val environment: ScriptingEnvironment)
         configuration.asSuccess()
 }
 
-class DummyEvaluator<ScriptBase : Any>(val environment: ScriptingEnvironment) : ScriptEvaluator<ScriptBase> {
+class DummyEvaluator<ScriptBase : Any>(val environment: ChainedPropertyBag) : ScriptEvaluator<ScriptBase> {
     override suspend fun eval(
         compiledScript: CompiledScript<ScriptBase>,
         scriptEvaluationEnvironment: ScriptEvaluationEnvironment
diff --git a/libraries/scripting/common/src/kotlin/script/experimental/definitions/scriptDefinitions.kt b/libraries/scripting/common/src/kotlin/script/experimental/definitions/scriptDefinitions.kt
index 92889aae11d..7d07b76389c 100644
--- a/libraries/scripting/common/src/kotlin/script/experimental/definitions/scriptDefinitions.kt
+++ b/libraries/scripting/common/src/kotlin/script/experimental/definitions/scriptDefinitions.kt
@@ -18,9 +18,9 @@ import kotlin.script.experimental.basic.PassThroughCompilationConfigurator
 
 private const val ERROR_MSG_PREFIX = "Unable to construct script definition: "
 
-open class ScriptDefinitionFromAnnotatedBaseClass(val environment: ScriptingEnvironment) : ScriptDefinition {
+open class ScriptDefinitionFromAnnotatedBaseClass(val environment: ChainedPropertyBag) : ScriptDefinition {
 
-    private val baseClass: KClass<*> = environment.getOrNull(ScriptingEnvironmentParams.baseClass)
+    private val baseClass: KClass<*> = environment.getOrNull(ScriptingEnvironmentProperties.baseClass)
             ?: throw IllegalArgumentException("${ERROR_MSG_PREFIX}Expecting baseClass parameter in the scripting environment")
 
     private val mainAnnotation = baseClass.findAnnotation<KotlinScript>()
@@ -29,7 +29,7 @@ open class ScriptDefinitionFromAnnotatedBaseClass(val environment: ScriptingEnvi
     private val explicitDefinition: ScriptDefinition? =
         mainAnnotation.definition.takeIf { it != this::class }?.let { it.instantiateScriptHandler() }
 
-    override val properties = (explicitDefinition?.properties ?: ScriptDefinitionPropertiesBag()).also { properties ->
+    override val properties = (explicitDefinition?.properties ?: ChainedPropertyBag()).also { properties ->
         val toAdd = arrayListOf<Pair<TypedKey<*>, Any>>()
         baseClass.findAnnotation<KotlinScriptFileExtension>()?.let { toAdd += ScriptDefinitionProperties.fileExtension to it }
         if (properties.getOrNull(ScriptDefinitionProperties.name) == null) {
diff --git a/libraries/scripting/jvm/src/kotlin/script/experimental/jvm/jvmScriptConfiguration.kt b/libraries/scripting/jvm/src/kotlin/script/experimental/jvm/jvmScriptConfiguration.kt
index 9f048195c5e..52d5236d281 100644
--- a/libraries/scripting/jvm/src/kotlin/script/experimental/jvm/jvmScriptConfiguration.kt
+++ b/libraries/scripting/jvm/src/kotlin/script/experimental/jvm/jvmScriptConfiguration.kt
@@ -11,7 +11,7 @@ import java.io.File
 import kotlin.script.experimental.jvm.JvmScriptCompileConfigurationParams.javaHomeDir
 
 inline fun jvmConfigWithJavaHome(
-    from: HeterogeneousMap = HeterogeneousMap(),
+    from: ChainedPropertyBag = ChainedPropertyBag(),
     crossinline body: JvmScriptCompileConfigurationParams.Builder.() -> Unit = {}
 ) =
     jvmScriptConfiguration(from) {
diff --git a/libraries/scripting/jvm/src/kotlin/script/experimental/jvm/jvmScriptData.kt b/libraries/scripting/jvm/src/kotlin/script/experimental/jvm/jvmScriptData.kt
index 854048c5923..8faf8e7c952 100644
--- a/libraries/scripting/jvm/src/kotlin/script/experimental/jvm/jvmScriptData.kt
+++ b/libraries/scripting/jvm/src/kotlin/script/experimental/jvm/jvmScriptData.kt
@@ -17,7 +17,7 @@ object JvmScriptCompileConfigurationParams {
     }
 }
 
-inline fun jvmScriptConfiguration(from: HeterogeneousMap = HeterogeneousMap(), body: JvmScriptCompileConfigurationParams.Builder.() -> Unit) =
+inline fun jvmScriptConfiguration(from: ChainedPropertyBag = ChainedPropertyBag(), body: JvmScriptCompileConfigurationParams.Builder.() -> Unit) =
     JvmScriptCompileConfigurationParams.Builder().build(from, body)
 
 class JvmDependency(val classpath: Iterable<File>) : ScriptDependency
diff --git a/libraries/scripting/jvm/src/kotlin/script/experimental/jvm/jvmScriptEvaluation.kt b/libraries/scripting/jvm/src/kotlin/script/experimental/jvm/jvmScriptEvaluation.kt
index dd548aac27e..8026bf844a1 100644
--- a/libraries/scripting/jvm/src/kotlin/script/experimental/jvm/jvmScriptEvaluation.kt
+++ b/libraries/scripting/jvm/src/kotlin/script/experimental/jvm/jvmScriptEvaluation.kt
@@ -22,5 +22,5 @@ class JvmScriptEvaluationEnvironmentParams : ScriptEvaluationEnvironmentParams()
     }
 }
 
-inline fun jvmScriptEvaluationEnvironment(from: HeterogeneousMap = HeterogeneousMap(), body: JvmScriptEvaluationEnvironmentParams.() -> Unit) =
+inline fun jvmScriptEvaluationEnvironment(from: ChainedPropertyBag = ChainedPropertyBag(), body: JvmScriptEvaluationEnvironmentParams.() -> Unit) =
     JvmScriptEvaluationEnvironmentParams().build(from, body)
diff --git a/libraries/scripting/jvm/src/kotlin/script/experimental/jvm/runners/BasicJvmScriptEvaluator.kt b/libraries/scripting/jvm/src/kotlin/script/experimental/jvm/runners/BasicJvmScriptEvaluator.kt
index 3dce16cf58a..47ef88d200e 100644
--- a/libraries/scripting/jvm/src/kotlin/script/experimental/jvm/runners/BasicJvmScriptEvaluator.kt
+++ b/libraries/scripting/jvm/src/kotlin/script/experimental/jvm/runners/BasicJvmScriptEvaluator.kt
@@ -7,7 +7,7 @@ package kotlin.script.experimental.jvm.runners
 
 import kotlin.script.experimental.api.*
 
-open class BasicJvmScriptEvaluator<ScriptBase : Any>(val environment: ScriptingEnvironment) : ScriptEvaluator<ScriptBase> {
+open class BasicJvmScriptEvaluator<ScriptBase : Any>(val environment: ChainedPropertyBag) : ScriptEvaluator<ScriptBase> {
 
     override suspend fun eval(
         compiledScript: CompiledScript<ScriptBase>,
diff --git a/plugins/scripting/scripting-cli/src/org/jetbrains/kotlin/scripting/compiler/plugin/ScriptingCompilerConfigurationExtension.kt b/plugins/scripting/scripting-cli/src/org/jetbrains/kotlin/scripting/compiler/plugin/ScriptingCompilerConfigurationExtension.kt
index d1aa2c1509b..af5e3e720ee 100644
--- a/plugins/scripting/scripting-cli/src/org/jetbrains/kotlin/scripting/compiler/plugin/ScriptingCompilerConfigurationExtension.kt
+++ b/plugins/scripting/scripting-cli/src/org/jetbrains/kotlin/scripting/compiler/plugin/ScriptingCompilerConfigurationExtension.kt
@@ -20,8 +20,8 @@ import java.io.File
 import java.io.IOException
 import java.net.URLClassLoader
 import java.util.jar.JarFile
-import kotlin.script.experimental.api.ScriptingEnvironment
-import kotlin.script.experimental.api.ScriptingEnvironmentParams
+import kotlin.script.experimental.api.ChainedPropertyBag
+import kotlin.script.experimental.api.ScriptingEnvironmentProperties
 import kotlin.script.experimental.definitions.ScriptDefinitionFromAnnotatedBaseClass
 
 class ScriptingCompilerConfigurationExtension(val project: MockProject) : CompilerConfigurationExtension {
@@ -127,7 +127,7 @@ fun configureScriptDefinitions(
                 val def =
                     if (cls.annotations.firstIsInstanceOrNull<kotlin.script.experimental.annotations.KotlinScript>() != null) {
                         KotlinScriptDefinitionAdapterFromNewAPI(
-                            ScriptDefinitionFromAnnotatedBaseClass(ScriptingEnvironment(ScriptingEnvironmentParams.baseClass to cls.kotlin))
+                            ScriptDefinitionFromAnnotatedBaseClass(ChainedPropertyBag(ScriptingEnvironmentProperties.baseClass to cls.kotlin))
                         )
                     } else {
                         KotlinScriptDefinitionFromAnnotatedTemplate(cls.kotlin, scriptResolverEnv)