PlayUp Alpha ver. 0.9.3 is now available in the Download section. PlayUp Tools now supports nested components and groups for the Unity 3D engine.
The changes are accompanied by a new and improved Unity 3D package that allows you to import levels by right-clicking on the level you wish to import directly from the project panel. Please note that you must install the new Unity 3D package for the new version of PlayUp to import properly to Unity 3D.
If you find a bug, please document it on the discussion forums in Facebook.