A toggle button for units to stick together

I know that zero k is micro management game however...

Sometimes i like to send a squad with a few diffrent units across the map and do something else while they are moving.
In many cases these units will have diffrent speeds and will therefore break their formation and do not even stay with each other.

So like the title says a toggle button to move units as a group (take the speed of the slowest units and even better stay in the formation they are for many tactical reasons) would do wonders!