Checkbox to edit specific sheets when macro is run

I have a macro that updates all the sheets named in my workbook. Which is great on setup, but for later edits I'll only need certain sheets to be updated, as this will be a personnel schedule, so I'll be adding and removing people fairly often.
Enter the checkbox so I can select which sheets I want the Macro to run on.
I just don't know how to integrate my current code with the check box aspect for the array.

Please if you geniuses would be kind enough to help me figure this out. I'm sure I'm over thinking this. The workbook should be attached.

Thank you