Feature request: add button that would add idletimestamp

[NovemLinguae]

Request copied from talk page.

"Would you be able to add a button that would add |idletimestamp={{subst:CURRENTTIMESTAMP}} to the unblock request? This adds the request to [[:Category:Requests for unblock awaiting response from the blocked user]], and removes it from [[CAT:RFU]], until the next edit made to the page. [[User talk:SQL|^{!ɘM γɿɘυϘ}]][[User:SQL|⅃ϘƧ]] 00:38, 1 June 2021 (UTC)"