Is there a way to chose what unit is shown when you are spawning/loading/unit select screen?

[PSYKOnz]

This has been bugging me for a while, I made up a bunch of awesome looking stuff that I want to sit there when loading into the game or behind the unit select screen, look I don't know what to call it but I'm sure you know what I mean, anyway, so the awesome looking stuff just dosent appear, instead I have one of the FARPs in the area showing, it's in the middle of nowhere and it's ugly.

Is there a way of picking what unit or base or what ever is displayed in that place?