Checkbox Field Mapping Zoho Forms to Zoho Sign

Checkbox Field Mapping Zoho Forms to Zoho Sign

I have an application that will be filled out via Forms that I am mapping into a PDF Filler on Zoho Sign. I need to have a series of checkboxes mapped to the corresponding fields in Sign and I only see single checkboxes available via the mapping, though there are checkbox groups in Sign as well as Forms. How can we get these fields to communicate?