Attached below is an image of what I am trying to accomplish. The Radio Button options are for the "Member" or "Non-Member" and the ID Number consists of two Text Fields, one with a comb character of 2 and the other with a comb character of 5. What I would like to happen is if the user selects "Member" they would be able to populate both fields, however if they select "Non-Member" the first Text Field would be populated with X's and the user would only be able to populate the second Text Field.
Thank you for reviewing this and any assistance would be greatly appreciated