Hi Again! My first question on this forum was answered with success, so I guess I'm 1 for 1

I'm working with checkboxes; when I insert a new check box, right click on it and select Format Control, there should be a tab called control, so that I can select a cell to reference.

However, when I right click now and go to Format Control, I only see 4 tabs; the control tab is missing.

Q. What didn't I turn on or go to, to get the control tab to show up?

Thanks