AWR1843: Special application to separate TX/RX antennas into 2 groups

We have a special application that the idea is to separate TX/RX antennas into 2 groups.

Group 1: TX1 & TX2 with RX3 & RX4

Group 2: TX3 with RX1 & RX2

We have such experience on AWR1642 (Group 1: TX1 with RX3 & RX4; Group 2: TX2 with RX1 & RX2), and it works well by modify some MSS/DSS relative source codes.

Now, we would like to do the same on AWR1843, but a little difference that AWR1843 with 3 TX.

So, there will be 2TX and 2RX in group 1 (TX1 & TX2 with RX3 & RX4), could it support MIMO mode with these 2TX and 2RX??

Thanks a lot.