Calling a macro in an Add-in from a different workbook?

I’ve created a custom tab to modify my Ribbon in an Excel Add-in. It includes a group with a custom toggle button that disables/enables Events when clicked. The basic initiating code behind the custom toggle button came primarily from Ron de Bruin’s website and is shown below. Clicking the button on my custom ribbon tab triggers it.
Is it possible to either call this macro from another workbook or use VBA to “click” it programmatically? I've tried the former without success and cannot find an answer to the latter. Thanks for reading.

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The existing custom toggle makes it easy for me to both turn off Events and visually see if they are currently off or not – see the over/under pictures of my Ribbon when the button is clicked below. Yesterday, I was working on a macro that erred out, after the line

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When I used my ribbon button to re-enable events, it reversed the orange highlight in the picture from highlighting it when it was off, to highlighting when it was on – see the second picture.
That made me think it would be handy to use the custom toggle button as a primary Events status indicator and not just a switch – so that I could always tell when Events were disabled. Rather than using “Application.EnableEvents = False” in my code, if I could trigger the Ribbon code using something like:

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But I haven’t been able to make it work. I’m researching your “public” comment, but at the moment I’m not completely sure what I would need to do, although that does make the error I’m getting make more sense – third picture below.

Let me know if you have any questions. Thanks for your help.

I have continued working on this problem as and found this solution in a different Excelforum query

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This solution involved calling a function from an add-in and can be found here. https://www.excelforum.com/excel-pro...-workbook.html

I tried modifying the above solution as follows.

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The first example above works, triggering a macro in my custom ribbon add-in - so the references and syntax appear correct. The second example attempts to trigger the desired custom ribbon macro shown above, but throws an error that an argument is not optional. The third example attempts to call the same macro with arguments as in the Add-in which works when the specific Ribbon button is pressed. That one gives me a 1004 error.
I’m not sure what I need to do to make the macro work. Anyone have any suggestions? Thanks.