Collectively Will Do the Work/Change Responsible

Only on open actions can you collectively update the action responsible/person to do the work.

SAT > Action > Action Will Perform Modifier menu and you can update the action managers or the person who will do the work collectively as I have provided in the appendix.

If you want to do this in closed actions;

You can update the responsible persons for action items with the help of the "Update" button in the Action > Planning > Items menu of the EYS >. Closed actions can't be performed in bulk.