Stoermelder for Rack 2?

i want to switch between controlling two count modula manual cv modules. or any pair of dual offset modules, with a momentary gate button. so that i can hold a button down to change the function of a knob from coarse to fine. i cant for the life of me figure this out! the when i press the gate button the voltage jumps instead of staying in place no matter what i try

the most straightforward way to do this is if two different dc offset modules were going into a mixer, and i could switch between which module is being controlled by the midi knob by pressing a midi button. if there is a stoermelder module to achieve this, i dont know how to use it or which module it is…