Sort User Library entries alphabetically (QU-5/6/7/D)

On the QU-24, User Library channel presets were automatically sorted alphabetically.
This made it very easy to organize presets into groups (e.g. drm_…; rthm_…; vox_…) and quickly find the right one during the setup of a show (especially with jazz jam sessions, that are rather ad hoc…)

On the QU-6D new saves are simply appended to the end of the list in chronological order, and no sorting is possible.

Requested improvement:
Add an option to sort User Library entries alphabetically (or set alphabetical sorting as default).
This would greatly improve preset management and speed during live operation.