menu bar – Big Sur Control Centre Configuration

Is there a way to edit the widgets surfaced in control centre by editing a config or plist at all?

Reason for asking is that I was configuring my menu, and cmd+dragged the fast user switching option out of the bar.. however, when I attempted to put it into control centre I noticed the option(s) were greyed out.

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I think this is policy as my Mac is JAMF controlled.. so now I have gotten rid of the icon by mistake and have no way to get it back!

Ideally I’d like this to be hidden away in Control Centre (see below), but I’d be happy with simply resetting the menu..

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Thanks!