MR816 8 outputs

I want to use my MR816 as 8 separate mic preamps, with 8 separate outputs, so mic in channel 5 for example, only comes out of TRS output 5.
Right now, when I use MR Editor, I have a mic plugged into XLR input ch. 7 but the mic signal is appearing at the TRS outputs of ch 1, 3, 5, and 7. How do I get this to just come out of the TRS for ch 7 output only? Thank you…