Chan Length - Top/Bottom Mount

Trying to get set up…I’m trying to use the automatic chain calibration. I think I’ve built a Top mount system (ie similar to default frame) … but the instructions in Calibration show a picture of what I think is Bottom mount. The chains feed out differently/opposite direction.
When I set my first link in the sprocket on the left (or right) sides it feeds out for bottom mount and my chain of course just falls off the sprocket. Is there a way to indicate top or bottom mount or am I doing something wrong?


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