Having the ability with squeue to show jobs whith a particular license request would be good. Obviously very low priority.
We've run out of letters for formatting and will need to address this with new logic in version 14.11. Until then, scontrol might be used (although that is verbose).
Sorry, I didn't mean with -o <format> rather with a direct command line option to squeue to filter on licenses (like -p or -q or -t options)
Fixed in v14.03.1. Use squeue -L or --licenses https://github.com/SchedMD/slurm/commit/512528ec89b45fd20dfe35d2aaede9122db52205