In distinction AUTOSCROLL TO SOURCE idea and AUTOSCROLL FROM SOURCE pack and modifying the directory structure Intellij Idea

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1. AUTOSCROLL TO SOURCE: click on the file in the directory tree view of the project, the editor automatically open the file.
2. AUTOSCROLL FROM SOURCE: after an editor opened a file directory tree automatically locate to the specified file.
3. Flatten Packages shrink directory structure
4. Compact Empty Middle Packages Hide empty package directory