Currently there is only minimal (slow blinking) decoration of the weather bubble if a job is actually executing.

Would it be possible to add some overlay (maybe a small clock (which sometimes appears in the build queue list itself), or even the letter "Q", or whatever to indicate that job is in the build queue.

CONOPS. you have a lot of jobs and a lot of dashboards. you have a deep build queue, you want to fire off a bunch of jobs from the web UI and don't want to have to keep scrolling up/down to avoid duplicates.