It appears Atka is no longer with us. No great loss other than we missed a product name to possibly avoid (imo). I'd rather draw in dirt with my "longest finger" than use an un-stimulating simulation 😂.
Besides, Scarm offers one now right?
I have to say I thought the instructions rightly belonged here too DD. You didn't go into to detail how to use Sketch-up, just how to import it into SCARM, making BOTH more versatile in doing so. It may not be viable for later versions today (?), but I'm only a charger away from firing up an old build of SCARM sometime .
Having as many SCARM intructionals in one thread (or two as I think there are two "bests") ... as possible is definitely the way to go