I have had some problems placing lights in a room. It is a pretty big room (over 100’ long). I tried to/did create multiple instances of a light. No problem until I tried to arrange them in the room. At least one of them, I never did see no matter how I manipulated the x,y,z settings. That is the reason I added a suggestion to allow me to use the cursor to place lights in the “wish list” thread.
I went back to SketchUp and tried to replace the lights (which I did actually see in SU in some really odd places) with a rectangle which I then defined as an emitter in Shapespark. However, there are no settings for an emitter in Shapespark so my room still is darker than I think it should be (however I have not baked it since changing to the emitter). I will go add another item to the “wish list” for being able to control an emitter.