My PC and PS4 run through the same screen in my room

When I need to lay down/use my PS4, my screen swings around so I can see it from my bed. Because of how my bedroom is setup, it would be difficult to just play the PC from my bed, as I do play other games etc on the PC, where having my desk with the keyboard and mouse is needed. I will need to mull over things, as I might have a work around. I actually have a keyboard running from my PS4-Pro, so maybe I could rig something up.
I just plug the USB cable in the PS4 controller, which is hooked up to my PC. Outside of Duty's / Trails etc, I will just have it running in mouse+keyboard mode. When it's time to do a dungeon, I just switch it to controller mode. The one thing I like with using a PC is I can use Discord and chat with my FC members, through out the day. Typically my push to talk button has been the back button on my mouse, I don't know if I could set the "Share" button for push to talk?
Again, thanks guys, you've got me looking at this in a different way, as I might be able to get away with using my PC for both when I am at my desk and when I need to rest on my bed.
Felix