Overview
Did you know it’s been possible to group people even back in 1997?
How to go
You can have twelve groups at the same time using all function keys from F1 to F12.
To create a group, make your selection then press CTRL + FKEY.
To use a group, press FKEY after group creation.
To erase a group without resetting, have nothing selected and press CTRL + FKEY.
This is especially important mid-game, when s h i t hits the fan and you need to command your gang to key positions and acting quickly when hostile foremen going nuts taking over your buildings.