I suggest adding a “drop resources/taxes” button to the nearest available building. This would be very useful for Villagers/Imperial Officials.
This hotkey was introduced in Age of Empires 2 a year and a half ago and players really liked it.
This will be very useful when you need to urgently age up. Or buy an important upgrade (pro-scouts and others). Especially in the early stages of the game, where you need to drop resources often, like in certain build orders. For example, when you need to create several additional scouts for Rus’ at the beginning of the game and others. Or buy the first stable, barraks, forge after a recent age up. On water maps this is useful when building fishing boats.
As one of the options, you can remove/exchange hotkey A - “attack on the move” on this hotkey. Imperial Official has no attack at all.