Don't understand companies and Kinetic Application Maintenance

I’m struggling to understand how different companies interact with Kinetic Application Maintenance. In the picture below there are menu nodes for ‘All Companies’ and then a specific company. What governs what ends up in the specific company dropdown? I would have thought it was the all companies checkbox in ‘Menu Maintenance’ but it doesn’t seem to be that.

One example is that the instance of ‘Customer Group’ under ‘Financial Management > Accounts Receivable > Setup’ only exists under the specific company node in Kinetic Application Maintenance. However when I go to that node in Menu Maintenance, it’s checked off as all companies. Does anyone understand the behavior? Thanks.
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When you select that main menu, and Enable it for Kinetic, it should force the Kinetic versions of that screen. I am just in the upgrade phase and focing all screens to Kinetic so users get used to it right out of the gate. Seems to work for me once I did that. Not a fan of it, but you can get it to work usually by trial and error, mostly error, lol
George.