How to use UE4 with wide screen monitors

Hello all,
I’d like to buy a Samsung wide screen monitor to replace my two old side by syde monitors.
My question is, since I would use a single monitor in place of two, how could I put some not dockable windows (e.g. material windows) in the right pane of the monitor?
Many thanks!

I’ve got an Ultrawide, and I recommend getting a second monitor still, just because it’s much easier to maximize a window on a separate screen than to try to use the docking features to have multiple windows on the same screen. So I’ve got the ultrawide as the main screen and then a 27-inch as the second screen so it’s the same vertical size.