What should Age of Empires IV improve?

[HasanIchess]

You cannot establish a control group independent of other units, if I have selected several units it will put the same control group on all of them, even though I have moved, with Tab, to a specific unit

Control group - Tab

I can use the Tab key to scroll through units to give them orders, but when it comes to giving them a control group it always acts as the blue box of all selected ones; Please correct that the control group is independent of the unit you select and does not establish that control group as all the units. [imagen]