WR-1 module is Wireless Relay. WM-1 module is Wireless Modbus to modbus bridge.
Check wiring possibilites at wiring page.

Pair a new module(s):

• settings page → WM/WR pairing,
• turn ON target module(s),
• within 10 seconds press Pair module(s).

Search for new devices after module(s) pairing:

• settings page → Scan w-less dev.
• if power sensor is detected, message will appear on settings page under new device or next to source/consumer device (add it to required position - Power sensor adding)

• and/or when WR module is recognized by EVSE, it will be positioned on io mux page based on set address by jumper: WR-1 address 200 is assigned to WR 1 position, 201 → WR 2, etc…