diff --git a/platform/core-api/src/com/intellij/openapi/components/RoamingType.java b/platform/core-api/src/com/intellij/openapi/components/RoamingType.java
index 090ac54db5cc..6a8b81fe578e 100644
--- a/platform/core-api/src/com/intellij/openapi/components/RoamingType.java
+++ b/platform/core-api/src/com/intellij/openapi/components/RoamingType.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2000-2015 JetBrains s.r.o.
+ * Copyright 2000-2016 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,9 +17,10 @@ package com.intellij.openapi.components;
 
 public enum RoamingType {
   /**
-   * Stored only locally, not shared.
+   * Stored only locally, not shared and not exportable (Export Settings dialog)
    */
   DISABLED,
+
   /**
    * Stored per operating system (Mac OS X, Linux, FreeBSD, Unix, Windows)
    */
diff --git a/platform/projectModel-api/src/com/intellij/openapi/components/Storage.java b/platform/projectModel-api/src/com/intellij/openapi/components/Storage.java
index 081b76d998c3..0b3921147bf6 100644
--- a/platform/projectModel-api/src/com/intellij/openapi/components/Storage.java
+++ b/platform/projectModel-api/src/com/intellij/openapi/components/Storage.java
@@ -44,6 +44,7 @@ public @interface Storage {
   boolean deprecated() default false;
 
   /**
+   * Used by the Settings Repository plugin to determine how application-level settings should be shared between different IDE installations.
    * You must not store components with different roaming types in one file ({@link #value()}).
    */
   RoamingType roamingType() default RoamingType.DEFAULT;