The areas highlighted in red clearly show that SVID 3, channel 1, has a mulipath signal with 20dB attenuation added.
But in the power adjustment window multipath 1, channel 2 has not applied the 20dB offset. This is because channel 2 previously had SVID 17 allocated to it with an ABSOLUTE power level of 10.99dB. The multipath signal has adopted the power allocated to channel 2. This is correct for 'absolute' power mode
In order to use absolute power levels and still apply a fixed offset multipath you must do the following:-