How do i add footprints to a unit

[Shlomi1515]

i want to build a unit and add to him a grid when the worker want to build it...

 

[Flare]

Under your specified building/unit, there should be 2 fields - Pathing and Pathing - Placement. I haven't tried either of them, but I'd hazard a guess that Pathing would be the area from the center which is unpathable for ground units, and Pathing - Placement is the size of the placement grid

 

[Severon]

Pathing Place ment will lock your unit to a grid.

EX: I have a civilian tower that is 1x1 footpath set to pathing place meant, so if you go to view and go to show pathing grid it will only take up 1 of those squares, in game it gets autolocked to those squares. The problem I have at the moment(which I haven't tried to fix yet) is that in scII campaing or melee it shows the grid the building takes up when placing and that isn't showing using the Pathing - Placement.