SC2Mapster

Maybe have a Effect - Instant ability use Issue Order to use one of the several Build type ability buttons which are not in the command card because the command card has a 64 button cap.

Think he wants the same ability to be able to place a random conformation and to have the visuals for placement conform to the variation being placed.

Ah so you want randomized footprints, no that is not possible.

They use a Model from the Models data type, the events are the conditions for them doing stuff and the SOps determine where they are created and how they are attached.

I advise looking at the tutorial on attachments by ProzaicMuse, otherwise my example of the splats eg psistorm is sufficient for your issue.

Just use a Model type actors that are created in the right formation at offsets using SOp (Local Offset) SOps on the cursor and then alter the opacity and tint/texture swap them to look right. Also use the SOpBasicScopeFollow SOp so the model follows the cursor.

If in doubt look how the various splat actors are controlled since they are doing what you want but for a single model.

Irony is you could even do the building in pure data. Just have the placement footprint cover all the structures but have the main one have a Buff behaviour that uses Create Unit effects to place the others. Of have the main one construct the others using an Issue Order effect that uses a Build ability on the main one.