Control groups at buildings without Alt press

[pasildan]

Hello guys! I would appreciate some help about this problem. I have been testing wargus and it's such an amazing work. My only problem is when I'm using control groups (control key + some number) with some building (for example control + 1 for town hall) I have to press Alt + 1 in order to select the building into a specific control group.
In any RTS game I have played before just you have to press the number selected for a specific building in order to use it as you wants. Excepting for Wargus I have to press Alt + a number.
Is there some way to make it working just by pressing the selected number in a control group? It could sound a little pointless but it affects a lot in gameplay whenever you are using control groups. It's much easier to select a building just by pressing the number. I hope it can be understood my problem.

I would appreciate any opinion/help.
Regards!