Actually, that might be fine if I understand it. There are only going to be checkbox form fields (all other fields will be the user's merge fields, or text that they will enter directly into cells in the table). There won't be any other form fields in the document.

But I still need to be able to lock the form to prevent the user from entering into cells that are not allowed, or adjusting the table cell dimensions. This is a medical form, and the alignment of the data entry fields must be maintained. And once the document is protected, the user cannot run the data merge. The only option I see is using a macro to perform the entire task as I mentioned in my last post, assuming that it is do-able.