House is prewired with 5 cable outlets. I only have two wires coming into the house and I want to operate 6 units, one is in a room with no outlet.

I understand using 2 SWMs units with the splitters, etc. What I would like to do is have one cable serve room #5 and room #6. So I would have to split this cable. Can you split a single cable with a diplexer to serve the two rooms? These rooms are next to each other.

It would be very difficult to run a 6th cable from the SWMs directly to the 6th receiver.