How to use the fluidd job queue?

In fluidd on the Jobs page there is a job queue on the right side:

How do I use that?

I added some prints in there while I was printing another file and the other file is now finished but it doesn’t start the next one from the queue.

I think I found the answer myself?

The queue seems to come from Moonraker, and it’s documentation says:

automatic_transition: False
#   [...]
#   When False
#   the queue will be paused after each job is loaded, requiring
#   that users manually resume to load the next print.  The default
#   is False.

In my case the problem was that the queue does not get automatically paused when the first job is added, so I have to pause and then resume the queue.