Capturing Amps and Pedals with UA Amp Top Box

I just received the Quad Cortex and I wanted to capture my amp and some pedals. I read through the manual but I did not see any diagram or explanation for capturing with a load box like UA Amp Top Box. I have seen it is possible but I was not sure how to connect the QC and UA Amp Tpx Box for capturing Amps and Pedals. I was wondering should you plug in an instrument cable from input 1 of QC to one of the Line Outs of UA Amp Top Box or is there another combination? I live in apartment and was going to try to do this silently and without a microphone. Thanks in Advance!

Whether capturing via mic, load box or signal out, as long as it’s line level, its the same process for everything and uses the same cabling connections.