Yet, I think there should be sort of a upgrade-screen, which shows and lets you select the current ships of a certain class you want to upgrade. Quite often, I only want to upgrade the ships at the front, whereas some ships in the back, e.g. near my allies, I do not want to upgrade now. Or sometimes I do not realize, that a certain ship of that type in question is near an enemy fleet and when upgrading that ship, my whole fleet comes to a halt and is in grave danger.
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I've had that happen a few times, when I didn't notice an upgrade was happening too close to the front lines.
It would be nice if, when selecting the "all" button for upgrades, a flashing circle would be thrown around all the ships that would be included in the operation. Then we could pan around the galaxy map, review the positions and any nearby threats, and click on ships we didn't want included to remove the flashing circle. That seems like it wouldn't be too terribly difficult to program (I know, easy for me to say), and it wouldn't require creating a whole new screen for upgrading... just use the normal galaxy map.