I would expect it to do the same as with a midi clock but with a voltage clock, to have the option to send its time a note is playing a gate from the gate output to trigger other function in the eurorack.
So you would like to have a gate generated each time the note at the CV input changes. This is actually a feature in the newest beat firmware already. Called auto-trigger
also if it will be possible to have an independent editing of a scale for each channel? – to have the ability to subtract different note from each channel (within the same scale of course)
No this is currently not possible, but will be eventually.