Hello!
It may be practical to mark a Folder with a symbol or shade when it contains Subfolders in order to avoid the double clicking on “one level” folders.
It may not be an issue at the beginning but after long use of the synth (collecting third party and user presets) it’s easy to forget the depth of collections folders (Presets, LFO, Envelops etc.) and keep on click, click, click.
I’m planning to go wild with this synth. Believe me, it’s pure joy! 