Thank you for those very helpful explanations.
Another question regarding your code.
If I place that exact code, can you please tell me if this sounds correct to you?::
After placing the function, anyone who adds an event to the cart, will then see the MER pop-up, and if they click “Return to Events” (which will now say “Add More”) button, then they will always just land on the page they were already on?
So for example, of they are on the /camps page when the pop-up appears and they click “add more” they will remain on /camps page
Or if they were on the /youth-classes page and the pop up appears they will remain on the /youth-classes page.
Are both of those examples correct assuming I place the exact function you shared?