Thanks for the idea. This feature has been evaluated by us and we will not implement at this time. You can , however, mimic the behaviour (but not the look) of a radio button group with a List Box. See attached image.
You don't have to use "physical" checkboxes and macro code.
Instead you can use images of checked and unchecked checkboxes and control the visibility of the images using simple if-then-else-Excel statements.
Nevertheless the radio buttons would be the easiest way to achieve the result you are looking for.
Thanks for the idea. This feature has been evaluated by us and we will not implement at this time. You can , however, mimic the behaviour (but not the look) of a radio button group with a List Box. See attached image.