Custom Radio Field Advanced Search

Hi,

I am trying to set up an Advanced Search filter (via the Customize My Search button) for a custom radio field with 4 option values. I cannot seem to set it up correctly: I have added a test listing and the detail page displays the correct Option Value for that field. But under custom search the listing isn’t found. Do I need to put a /1 …. /2 … /3 …../4 in the Option Values (the guide text in backend says something about select but does not mention radio I’m not sure what a ‘tick filter’ is now!) – when I tried it the listing was showing ‘Yes’ or ‘no’ instead of the Option Values.