TL;DR: make aoe4 hotkeys scheme in a way that it could be set as the same as other AoE games.
One of the main assets on how to be a good player on any AoE game is to master the hotkeys. Yet, its quite a task to move from one game to another because of that.
AoE games are very well known foir being very complex. I play both AoE2:DE and AoE3:DE and one of my great challenges is changing from one game to another because its a completely different hotkey set. My suggestion is to make a way to set the hotkey scheme in AoE4 in a way that it could be the same/equivalent of the other games.
In AoE2:DE you can set a hotkey “preset”, be it the “Classic AoK”, the “HD version” or the “DE”. My suggestion is to add the same hotkey presets in AoE4: “AoE1”, “AoE2”, “AoE2 HD”, “AoE2 DE” and “AoE3:DE”.
In that way it would be easier and smoother for players of other AoE games like me to adapt to AoE4.
I mean, I would definetely play more AoE3 if it wasnt such a move to adapt to the hotkey system (it’s also very difficult to set them as custom, since the logic behind the buildings in the villager/settler building menu isnt the same).