I need to remove hundreds of parent work packages - how to achieve?

In the bulk editor UX it is only possible to define the wp number but not "nothing" - any idea other than do it one by one?

Hello @openproject team; would it be possible to be more active in your forum?

At least an answer "it is not possible" or "there is a workaround" would be helpful.

cheers

Rainer

Hello Rainer, 

It is only possible to bulk delete the parent work packages but currently not to set the value for the "Parent" field to NULL. We have feature request OP-7360 for this functionality. I have added your vote. 

Have a good week, 
Samantha