MXXX6In - 6out Routing Help needed

[andrewernick]

Anyone here familiar with how to route audio to MXXX6In-6Out?

I want to send specific channels from my DAW project into the single lanes of MXXX6...
when I send audio to channels 1/2 of the plugin, it receives the audio. But when I send audio to channels 3/4, MXXX6 doesnt receive anything... matter of fact, it only receives channels 1/2.

I attached an image to this post. I work in Reaper, its fairly easy to route audio to channels of a plugin, but it seems like im doing something wrong.

As you can see in the attached image, Im routing audio to channels 3/4 , which then should come into MXXX6 into channel 1-3, and 1-4. This doesnt work.. also, when I route channels 3/4 to lets say MXXX6 channels 2-1, and 2-2, it also doesnt work.
When I tell MXXX6 to only receive 12 channels in total, so MXXX6 has channels 1L, 1R and 2L,2R and so on and so forth, it also doesnt work. basically i just cant get it to work how I thought it would!

[andrewernick]

Ok, my bad. I totally forgot this is MXXX6In, 6Out

So in order to hear what im doing in the other lanes, of course I need to catch the signal thats coming from MXXX. But I dont really need that. So here's an attached image of how I routed the
plugin in order to hear all 6 lanes from a single stereo output 1/2