Side Chain in Interview Situation - Problem

Hi there,

this is my first post ever in a forum like this but I think I´m going mad... I got plenty of years of audio engineering under my belt but recently switched to Audition because Logic Pro X refused to split stereo interleaved files to dual mono and I decided to give audition a try. 

I am pretty pleased with the layout and UI and everything but I came across a very peculiar problem with sidechaining.

My situation is a interview situation with 2 lavalier mics:

I am trying to put the dynamic processor plugin on both channels and cross-sidechaining them. So when Person A speaks Person B gets lower and vice versa...

Problem 1 is whenever I put a send from one to the other, the other option gets grayed out. So when there is a sidechaining active on Person B I cannot send a sidechain back to Person A.... which is very peculiar. I totally understand this logic on normal Bussends, but maybe someone knows a workaround for this...

Problem 2 is that I cannot get the effects processing to work properly. Both the signal meter and the effects work as if there was no Sidechaining present. 

I watched some videos and read the manual but both do not mention my problems here... 

I hope someone can help.