Allow global control of variables in Local Variables panel

I would like to be able to set global variables in a component library (for example, for callouts), then use those components in other files and control variables used in those components from the Local Variables panel.

For example, I could create a “callout” component in a library, add that component to multiple screens in a file, then use the component’s boolean global variable to turn all instances of that component on and off at once. I’d like to toggle this variable in design/dev mode, not in prototype mode.