How to extend two monitors in a freerdp session?

I would like to extend my two monitors in a FreeRDP session. I want something like . In Windows, we normally go to the displays settings and there we choose to extend the monitors, but I don't know how to do it with FreeRDP. When I run my FreeDRP session, if I specify /span, Windows recognizes my two monitors as a very large one. it is what it currently looks like. I already tried specifying /multimon, /monitors:0,1 and /span options to xfreerdp, but nothing works. How can I achieve what I want? Thanks.