diff --git a/buildSrc/gradle.properties.as31 b/buildSrc/gradle.properties.as31
new file mode 100644
index 00000000000..5f8abd5de3c
--- /dev/null
+++ b/buildSrc/gradle.properties.as31
@@ -0,0 +1,9 @@
+org.gradle.daemon=true
+org.gradle.parallel=false
+org.gradle.configureondemand=false
+org.gradle.jvmargs=-Duser.country=US -Dkotlin.daemon.jvm.options=-Xmx1600m
+
+#buildSrc.kotlin.repo=https://jcenter.bintray.com
+#buildSrc.kotlin.version=1.1.50
+
+intellijUltimateEnabled=false
diff --git a/gradle.properties.as31 b/gradle.properties.as31
new file mode 100644
index 00000000000..3b6606a9c61
--- /dev/null
+++ b/gradle.properties.as31
@@ -0,0 +1,13 @@
+org.gradle.daemon=true
+org.gradle.parallel=false
+org.gradle.configureondemand=false
+org.gradle.jvmargs=-Duser.country=US -Dkotlin.daemon.jvm.options=-Xmx1600m
+
+kotlin.compiler.effectSystemEnabled=true
+kotlin.compiler.newInferenceEnabled=true
+#maven.repository.mirror=http://repository.jetbrains.com/remote-repos/
+#bootstrap.kotlin.repo=https://dl.bintray.com/kotlin/kotlin-dev
+#bootstrap.kotlin.version=1.1.50-dev-1451
+#signingRequired=true
+
+intellijUltimateEnabled=false