how to turn down power level

Hello ALL;
I really want to know how to turn down the power level on my canopy’s. I have tried checking on the configuration pagfe but cant find where, could somebody help me ?

Configuration Page -> Transmitter Output Power (dBm)

hope that helps

Depending on the radio, you will either have the ability to adjust power in dB, or you will simply have Normal and Low

Low is -18dB compared to Normal.