Simple - no. I mean in practice that is under one minute to configure, but that can't be called "simple"

An example is attached.
Obviously you need a button/pad which is "momentary", do send different MIDI when pressed and released (assuming 127 and 0 values respectively). You need to re-assign
MIDI to the button in the example to test.
The explanation.
The control has to be "Pad" type (Options Tab). In this case "0" and "127" are automatically set "Note" Software Set into "On"/"Off".
All Actions by default have "Note:On" Condition, so when you assign momentary button/pad and configure it, releasing is completely ignored (no actions executed).
For the purpose we need special processing for release. But let me explain Actions in the example in the order:
* Monitor/Timer Once is something we can call with delay. It will not re-trigger itself, we could make it as such but for repeat action that is more complicated.
Monitor Actions are executed in special environment (there is a good reason for that, but it is too lengthy to explain here). In this particular timer we just
"Loop send" the same MIDI, so imitating the button is pressed again. (In the Feedback tab) note the options "<Use ctrl MIDI>", value "127" and "loop".
* when physical button is releases "Note" will be set to "Off" (as explained previously). So we explicitly set that as the condition for the second Action. We
reset our Timer to "normal", which since it is "once" means just disarm it. Note that is "Final" action (* in the label, related option set). Not really necessary in this
example, later Actions will be ignored in any case (they have implicit "Note:On" condition), but explicitly specify we want stop here.
* In case we press the button for the first time or the Timer has imitated the press, we arm the timer (the first time or again) with ~1 second delay
* the rest is what you want repeat, in this example "Zoom in".
I hope that helps and not too overwhelming to understand/use.