My title may be wrong. I don't know the jargon.
My Goal:
To find a way to have my 4 monitors open (default to) a specific program/source/window.
Example:
Monitor #2 always opens to Windows navigator (or whatever source I choose before hitting "set" )... No other monitor Shows Windows navigator...If I open Windows Navigator on another monitor, it becomes visible on moitor #2...etc.
...and each of my monitors if similarly configured.
You can use our triggers feature to set that up (guide on triggers here: https://www.displayfusion.com/HelpGuide/Triggers/). I've attached an example trigger below that would move any opened Edge Windows to monitor 2.1. You can set up a trigger for each app/monitor.