Here's a list with lots of keyboard shortcuts for TFS and Azure DevOps (former Visual Studio Team Services former Visual Studio Online).
The shortcuts below are the ones I've been missing the most. Sometimes it takes quite a bit of patience to move a work item around the board, especially if there is scrolling involved. I'll try them out first thing at work tomorrow!
And there seems to be a rich text editor coming up!
Well, moving work items around with the keyboard is useful, but not super useful because you have to wait a short, but a bit too long, time after every move.SvaraRadera