Attached file has a sample to describe what I am trying to accomplish. My goal is to be able to select an option within the group and once the selection is made the rest of the options should become unavailable for selection, basically the same concept with radio buttons. I could have achieved this using radio buttons in fact this is how it is done currently for the users, but the new requirement is forcing us to eliminate all the control objects from the file, that is all active x controls and form control objects like checkboxes, option buttons, drop downs etc. In this case I need a logic, code or a setup to simulate what can be accomplished via radio buttons. On the file there is also a problem description in a box.