Create 2nd OBS window to latch docks onto

Hi,
I am in the process of setting up multistreaming and vertical streams with Aitum and I've found that there is so much fidgeting with everything on 1 window. As I have 3 screens: I want to be able to have a 2nd OBS window and move any extra docks there for me to latch onto that window. I know that I can move the docks as extra windows there but I am unable to latch them together to keep them all together for me to function.

Does anyone have any suggestions to solutionize what I am trying to achieve?
 
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