Simulscan - overlapping fields in template


I need to prepare a template which captures a barcode that is located somewhere in the document together with picture of whole document. The option to capture just barcode by template and have picture by choosing option "output entire form" in template settings is not satisfactory as sometimes the result picture is not a full document but just some part. In the template it is not possible to have two fields overlapping which could solve the problem (I would mark whole document as picture and some area for barcode searching). Any idea how to solve that issue?