This post has a wee bit more info on how I set my Z17 up using 2 reed sensors... Having the latest (1.04) firmware is key, and mine is joined as no security (not using S2 - S2 just doesn't seem quite ready for prime-time yet IMO).
The native Hubitat driver for Z17 doesn't expose ALL of the parameter options, but it handles most of them... The only thing I needed the "Basic Z-wave Parameter Tool" for is to set the auto-off time for my relay to 1 second - that makes it perform as if it's a momentary switch.
Here's what my parameters are for the Z17 itself...
