I think it would be cool to have a feature where you can import new rigs from USB into an 'audition' area.
This area would be separate from your permanent rigs so when you are browsing rigs you can switch between the two views (like you can in the new cab selection menu). You can then audition rigs without having to filter out pre-existing ones, if you like one you can select it and add it to your permanent rig folder.
There would also be an option to wipe the audition area but leave your main rigs in place.
I believe that this would vastly improve the ability to effectively manage rigs, especially with the new limits lurking around.
Thanks for listening
Spence