@russian-dima I agree the repeater is my best method to use, and my tests are going in that direction as you see in my last post. Thanks for all your help, collectively.
There is just one more item that has not been touched (at least I don’t see it) by any posts. That is how open the repeater with prechecked items already displayed. That is when the repeater first displays, no boxes are checked. When I click a box, the box I click AND the precheck box show up. Any thought on what I can do to get the precheck to display when the repeater is first displayed?