Hi,
ok,
you want when is text area element turn on that display some text and that type of field is read-only, otherwise that is empty when is turn off.
Based on which element you want to turn of/on element text area?
As I see in your Form that is this
turn off element onder4 if KinderenOnder4 is Nee
turn on element onder4 if KinderenOnder4 is Ja
based on element 'KinderenOnder4 '?
Regards,
Mirko