There are a fair number of queues in Aurora, but few commonalities between them. The industry, ordinance, and fighter queues all share a common UI, and so they all have the same features.
The other queues all have different UI and generally fewer features.
Some of these differences are justified as being different game mechanics. For example, shipyards generally must be retooled in order to build a different type of ship, so you can't pause the current ship, build another, and then continue the first the way you can with items in the industry queue.
Other differences are not so justifiable. For example, there is no game mechanic that explains why you cannot set your terraformers to add oxygen to the atmosphere now, and then schedule them to start adding water vapor afterwards.
I've prepared a table summarizing the queues and some of their salient characteristics, highlighting in red those items that I do not think have a mechanical justification. These are the ones that could be changed to a "yes" without changing the game mechanics.
Queue Name | Pooled resources? | Multiple items? | Future items? | Change order? | Percentage allocation? |
Fleet Orders | yes | yes | yes | no | no |
Industry | yes | yes | yes | yes | yes |
Ordnance | yes | yes | yes | yes | yes |
Fighters | yes | yes | yes | yes | yes |
Shipyard | no | yes | no | no | no |
Research | partial | yes | yes | partial | partial |
Ground Units | no | yes | yes | partial | no |
Civilian Contracts | yes | yes | no | no | no |
Terraforming | yes | no | no | no | no |
Some of these have been suggested individually before, and probably I'm not the first to suggest unifying the features of all the queues as much as possible, even if the UI remains ideosyncratic.
Some of these would be easier than others. For example, with sufficient effort it is actually possible for the shipyard queue(s) to support the case where the current ship is paused and another ship is completed first. If retooling operations were a part of the queue, and the game inserted those operations automatically when the queue was edited, then moving the current ship down in the list would probably insert retooling operations before it and after it. The user would probably change their mind right away, but it would not be impossible to implement.
The terraforming queue has obviously gotten the short end of the stick here, even though terraforming itself has been improved significantly.