Dear @felix.mariotto
accessing command options via a single letter can be tricky - and I also do not love the current implementation. (first character, if already used 2nd, if already used 3rd, …)
there is an old post
where I suggested - for your case:
c → CreaseAll
cc → Cosntantweigt
(and a fictional 3rd option Clear all)
ccc → Clear all
but the resonance in that old topic was little.