Yes! If you have a dual sided power meter you can use either the left or right (or both) power meters individually as single-sided power meters. All you need to do is unpair the power meters in the 4iiii App and then only connect the relevant power meter to your cycling app or computer.
TO UNPAIR A DUAL POWER METER
1. Connect to your dual power meter, and navigate to the DEVICES page.
2. Spin the crank 3-4 times to wake up your power meters. Press the UNPAIR DEVICE icon. Wait for a prompt indicating unpairing was successful. You will now see the devices listed separately.
Note: After a dual power meter has been unpaired, each power meter will automatically double your power output to give you total power.