Change status when creating
MR opened = change status
When ANY associated merge request is (re)opened in this connected project, change status of associated item to something.
Branch created = change status
When an associated branch is created in this connected project, change status of the associated item to something
Close Merge request
Any MR merged = change status
When ANY associated merge requests are merged in this connected project, change status of the associated item to something
All MR merged = change status
When ALL associated merge requests are merged in this connected project, change status of the associated item to something