Maybe you can use LBP2 software, with this program multiple programs can share 1 port.
I dont work with it so you have to read the manual.
Gerrit – PA3DJY
Van: main@WSJTX.groups.io [mailto:main@WSJTX.groups.io] Namens Arthur Tanner via groups.io
This three-some would make a great display for Field Day, but N1MM and GridTracker seem to share the same ports, and although I get N1MM working well with WSJT-X, I can't seem to add GridTracker. Does anyone have a solution? Thanks.