Request attention quick action
For users who use quick actions a lot this will helpful to quickly request attention from an assignee or a reviewer.
Ideally the quick action dropdown should only contain current assignees and reviewers.
Proposal
/attention @user1 @user2 Request attention from assignee(s) or reviewer(s)
/remove_attention @user1 @user2 Remove attention request(s)
Edited by Pedro Moreira da Silva