Yes !
I think I'm approch to the objective, it may works,
so thank you Angr77 !
B U T : when i press right in " set all Edgeswitch", Megadrum seem to be "block" on <working>, it don't return to Vumeter, and when I roll the menu to return in <set all Edgeswitch> parameter, it stay at <no>...
If I solve it, It could work well, I feel it work, but it seems to bug!
Have you got Idea? Angr? Dimitri??