Fake Selection

Is there anyway I could make it look like the unit or build is selected without actually having it selected?

I can't be done as far as I know. The selection circle is built into the game. You can try using the selection circle model but it has problems too. It's less bright then the normal one, it doesnt attach to units right at the ground (its a little above the ground), it doesnt change size for different units, and you need to use different attachment points for units and buildings I think.

Here's a demo map. Change the camera view (scroll wheel) to see the difference in the attached selection circle and the games.

Razernok do you need UI panel show/info ? =\

Huh?

He's asking if you just need the visual selection circle in-game, if you need the unit's stats/info/portrait to show up in the UI, or both.

Create a unit with all the function you want, select it whenever you need it to. (Most likely when the other unit was selected) Although I don't see how that would be much different from what the game already does for you.

just need the visual selection circle in-game

Razernok that relative easy.
you need create an "image" (via trigger) and move it to units position that all. =)

So the selection circle the game uses when you select a unit is just an image that scales to fit the unit?

Pretty much yes. You can simulate this with creating an image using the selection circle graphic.

ok thx

*begins searching through the mpq files for the selection circle's filepath*