Hi, i made small plugin for community :D. It is in game second “viewport” for help debug. For example check multiplayer FP character from side without create another pawn and start server.
This plugin is completely free and have open source code on github :). Now it work only on UE 4.25.
Download link - https://drive.google.com/file/d/1oYJ…Plv5BzrDg/view
Source on github - https://github.com/KoTeYkA23/Second-…dow-UE4-plugin
Video tutorial - Second viewport window plugin tutorial UE4 - YouTube
I believe this will be helpful for you 
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P. S. “I apologize for possible errors, English is not my native language :P”[/RIGHT]