g.lolo3:

Moreover there is the "Delete Preset" in the list editor.

It works for Computer Lists but not for H9 list. A bit confusing…

What do you mean that "Delete Preset" doesn't work for the H9 list?  It certainly should.  When you delete a preset directly on the H9, it should shift every preset above that preset down by one.  But if there isn't anything assigned above the current preset it will appear that nothing has happened though.