OK, i think Blanco was first here
"leader patrolgroup knowsabout _x > 0" count unit (attackersgroup) > 1
:note that i forogt the > 0 inside the brackets at the post above
means that if the leader of the group called "patrolgroup"
knowsabout a higher value than 0 about any member
of what you count behind the "" brackets.
In this case i was counting the units of group attackersgroup
The leader of a group will know what his guys know, this means
you can take him as referback to his group.
If he knows more than the value 0 about any member of the
group called "attackersgroup", then the condition will match here. = trigger goes off.
The "any member of the group" you specify with the _x here
Ok, now to GaryP's question:
in general a switch trigger will let a group/unit move to the
waypoints after the waypoint which is syncronized to it.
Let's say a switch trigger is grouped to the very first
waypoint of a unit, the trigger would even let the group/unit
repeat the series of waypoints after the very first one, even
if the unit/group would have had already passed it before.
hope this helps
~S~ CD