fiskhill

If you wan to use only 2 of 3 monitors RDP accepts the setting selectedmonitors:s:0,1 which will run a muilti monitor RDP session showing the monitors on those 2 screens. You can see which screens are which by running the CMD MSTSC /l

You will have to select multi screen in the settings tab and then edit the RDP file using text editor and add the selectedmonitors:s:0,1 Using the monitor numbers that you want to use from the MSTSC /l cmd.

Here is an article that better explains it: https://www.nextofwindows.com/how-to-remote-desktop-in-full-screen-on-2-out-of-3-monitors