m2tklib U32NUM How to get feedback when exiting?

Hello,

I stumbled on a problem with the m2tklib U32NUM element, that I could not solve myself.

I have a menu with two U32NUM elements for entering limits (lower and upper).
In every elements I enter the number digit by digit. After entering the last digit into the first element I jump to the next element and do the same there.
When doing the jump I would like to copy the value of the first element into the second element as a starting point for entering the second value.

After entering the last digit of the second element I would like to go to another menu.

That means I would need some kind of indicator that starts a function when leaving an U32NUM element.
In one case to copy the first to the second value. In the second case to call a different menu.

I already tried with U32NUMFN. But it offers no messages that are only valid when leaving the menu.

Maybe there are more undocumented messages than M2_U32_MSG_SET_VALUE and M2_U32_MSG_GET_VALUE?

Is it possible to put somewhere in the m2tklib library a flag to indicate when leaving the U32NUM element?

I would appreciate your help finding a workaround.

Thanks for reading,
Clemi

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