@Cachow posted:When should SW 1 & SW2 be closed or open with two bi-directional tracks
Since there haven't been any replies yet, and even though I don't have these, I did read the Z-Stuff DZ-1010 Set directions to try to help you.
Switch 1: Mode description (click image to below expand)
Switch 2: (click image to below expand)
Use with two bi-directional tracks is discussed with no reference to Switches 1 and 2, but does mention purchasing two additional DZ-1011 detectors.
Without knowing more details about whether you plan to use isolated rail triggering or the detectors and how many of them, I'm not exactly sure how to better answer your question.
I hope this is at least somewhat helpful.