For input field "Which Form" own form (in the background "Edit Event" form component) can not be selected.
It is not in input field "Which Form" drop down list of all available forms.

All other forms are in the list except own form "Event edit" of this page
Thanks for that piece of information. Can you also tell me what data is linked to the form (DOM instance, flow, …) & the DataMiner version you are using?
DataMiner (10.6.0.0-16833-CU0)
DOM instance is linked to the form
DOM instance is linked by a variable of type Object manager instance
Hi Harald,
We have recently fixed an issue where data coming from Flows & Variables didn't make components available for actions based on the underlying data type. In your case this means that the form component actions aren't aware that the variable contains a DOM instance that can be used in actions.
The fix will be available in DataMiner 10.6.4, a web-only upgrade is sufficient.
Hi Wout,
on website only 10.6.3 Web Upgrade is available
That is correct. DataMiner 10.6.4 is scheduled to release on March 20th.
Do you see any component in the 'Which form' dropdown or does it contain nothing at all?