Toggle setting to show "Event Notes" inside of Hover Action - Calendar when logged in, and "Internal Calendar View"

We provide our "Internal Calendar View" link from the display settings to our custodians in order to have a quick view of monthly events going on in the system. It would be hugely beneficial to allow a setting to make the "Hover" menu in Yellow with the event details also include the "Event Notes". We would want that on the logged in calendar as well, so a toggle setting would be beneficial to allow this to show for all users who can hover and see event details. Custodians are not logging into the system, they are seeing the "Internal Calendar View" only, so we would like to apply a parameter or toggle something so the event notes are included in that hover menu.