Why can’t the user preset be stored in MediaBays UserContent?
Here on the Mac the location, which can’t be changed, is ~/Library/Audio/Presets/Steinberg…/Halion 6
Working on multiple platforms this is very uncomfortable.
By the way, the user presets are not visible in the Cubase MediaBay (F5). The only way to load a Halion 6 user preset is to use a track preset.