Cons repair units automatic?

How do I make my cons follow and constantly repair any friendly units around them? I use guard, but that's only for one unit, so how do i use it for a squad, etc. without micro?

Fight command with cons is like all orders bundled in one. If you set a fight command they will repair, assist or reclaim anything in their path, depending on whatever is closest.

However if you want your cons to purely repair, what I do is set con on repeat and drag a wide repair command, that way the order won't disappear once everything in the circle is already repaired.

fight:
walk to a certain point and do everything possible on the way (repair, assist, reclaim). then clear command
patrol:
fight to point A, fight to point B, repeat
repair single:
repair it till health is 100% or targeted unit dead (attempts to follows unit, even if teleported away). then clear command
repair area:
repair all units in area till no more unit with health < 100% is in circle. then clear command
repair area repeat:
repair all units in area till no more unit with health < 100% is in circle. repeat