I revamped the GUI this morning, and I can still add "mouse info" if you think it is needed
Level one opening screen:
An aircraft set selected:
If you select the aircraft the lists of skin folders and FM folders it references can be seen and even edited if you click the "Personal aircraft selection utility" tab.
Making an aircraft selection brings up the folder re-naming and information editing possibilities.
This may not seem necessary, but if level two users assemble a new set of planes and save them the files go into the first available folder. The name of this folder will be something like "PS24" which is not user friendly, and needs to be re-named.
Edit:
The "PSMV10.exe" interface is available on the 150 download page