Adding dynamic content at runtime?

I'm new to Torque, so I apologize if this is lame.

Playing around in the engine, it seems when placing content (the engine in editor mode) I'm still pretty much in the game engine. Therefore if I can place content programmatically instead of with the mouse (can I) then I can place content at run time, right? Others had commented there wouldn't be shadows for the new content, but there are those commands to recalculate the lighting, so couldn't I call them also? I realize there might be a delay but how long, a second or two, right (I guess depending on the complexity of the level), but if I have a way to cope with that in the context of the game, then I can in fact do it, right?

Thanks