Inspect queue - expert mode
Hoi,
While scourging the code to try to figure out how to debug the issues I had with my hub after the upgrade to 11.0, I came accross this nugget which may not be known to many:
There's an "expert mode" when viewing the the outgoung queue in /admin/queue. Add
?expert=1 to the URL, and you will get some extra options and controls. Like this:
/admin/queue?expert=1

The buttons allow you do mark the site as permanently offline, empty the queue for the given site or retry delivery right away.
Once you have made a choice, the page will reload in normal mode, so if you want to process any more entries you have to enter the query param again.
This can probably be made smoother, and given a better UI, but I thought it could be interesting to the documentation team in any case.