Use two amp blocks. Or in the case of an FM3, use a Scene Controller, or a Control Switch to add the 'Mid Boost' without switching channels.Scene 1 : Amp block channel a , cab block , delay bypass
scene 2 : amp block channel b (same than a with a mid boost for example), same cab, delay block on
sound gap between the 2. And this with whatever amp .
not in the computer, but no problem to share a preset . I got this problem since the beginning and I’m not the only one to notice it . It’s not gapless between scenes .