So, from what I understood, it's a suggestion for a way to "respec" the upgrades, right? If so, I'm not sure if that would work well, because if you had enough gems to unlock a single column in the upgrade menu, you could unlock all units in the game by using that repeatedly (though wouldn't be able to use some in this specific scenario due to some requiring stuff from other columns to produce/research, but still). For example:
- player joins a game
- buys some column in the upgrade menu that has some mercenaries in it
- sets some factories to train those
- respecs the upgrades
- buys some column that has some ships in it
- sets some TCs and docks to train those
- respecs the upgrades
- buys some column that has a few romans in it
- builds a roman garrison and starts producing them
- etc.
So if that was possible it would defeat the purpose of the upgrade menu, while also making it much more awkward to use for newer players.
Maybe if the "respec" was limited to like, once a year, it might work with less room for people to exploit?
