This extension is currently not very usable. Before I can make this truly useful I need access to a nodes pivot and parent. See #1 and #4
You can use the these editor scripts in your own project by adding this project as a Defold library dependency. Open your game.project file and in the dependencies field under project add:
https://github.com/Jerakin/editor-script-align/archive/master.zip
This extension adds a few alignment tools to be used in your gui scenes.