>>>>>>Certainly possible.
>>>>>>
>>>>>>Why don't you just use Value_assign to keep the Value from changing?
>>>>>>
>>>>>>-m.
>>>>>
>>>>>Haven't thought of it. I think my solution is OK for me - using when event and flipping value in when event.
>>>>
>>>>Value_assign works for programmatic change only, not interactive.
>>>
>>>Good point. Did you virtually move or in reality?
>>
>>Yes!
>
>Nice answer :) It doesn't answer the question, though.

The exclamation mark should be a clue.

IOW, both.