There is another way of setting up com0com paired ports and theoretically it would allow for 4 useful combinations (when it comes to using RSLogix Emulator).
The ports could be set up in pairs as COM1-COM11, COM2-COM12, COM3-COM13 and COM4-COM14 (the ports numbered with 11, 12, 13 and 14 could be changed to other numbers like 5, 6, 7 and 8 or different).
Since the emulator relies on ports 1, 2, 3 or 4 then one of these would have to be assigned to it while the other paired port 11, 12, 13 or 14 would have to be used in AHMI project (check the attached picture of DF1Com1 Settings).
Another point to make is setting RSLinx emulator driver workstation number. I have just used number 5 for it and in RSLogix emulator selected station numbers 0, 1, 2, 3 and 4 one at the time, selected the same number in DF1Com1 TargetNode property and it worked as well. Check the attached pictures taken when testing station number 4 (I used paired ports COM1-COM11).