I touched up some work in progress stuff I had laying around to let the user save their selected jobs from the "Add New Jobs (Search)" dialog as presets that they can re-use later. The presets are saved in localStorage as lists of task labels, so they're specific to the user and are easy to accidentally blow away if you erase localStorage, but it might be something to build from. If there's a way to run the task mentioned in comment 8, maybe those presets could be hard-coded into the list of saved presets, but available to everyone?
Bug 1561059 Comment 10 Edit History
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I'm not going to have much time to work on this further, but I touched up some work in progress stuff I had laying around to let the user save their selected jobs from the "Add New Jobs (Search)" dialog as presets that they can re-use later. The presets are saved in localStorage as lists of task labels, so they're specific to the user and are easy to accidentally blow away if you erase localStorage, but it might be something to build from. If there's a way to run the task mentioned in comment 8, maybe those presets could be hard-coded into the list of saved presets, but available to everyone?