Thanks @Xiphware,
Great workaround.
Update:
We do NOT need to add to name-to-hide required = ${finished} != ‘OK’. This is controlled by the relevant too.
So, name-to-hide field is just required = true (as we use it in dynamic question labels).
Is there any possibility to use a finalise or sent system event/status for your relevant? This would make the solution more automatic.
Kind regards
Wolfgang