When I am in the screen to add the Z Wave device, there is no “pair” button to select, just “include”.
Include is the pair button.
Press Include. While the panel is listening for a device, press the learn button on the Z-wave Device.
Z-wave devices can only be learned into one network. A device may have a prior parent network saved, and will not pair if that is the case. In that case, you must just do a clear device first.