Merge fields but not use "merge field"

[Kelly_Jakks]

I want to merge 12 fields into. I don't want to use Merge Field, because from what I am aware, this isn't a cross record field and will only work on the layout it is in. I want to develop a number where each field creates the UPC code to look like 0-12345-67890-6. Each digit is originally in it's own field for calulation purpose and now I want to merge it and make it automatically appear as the pattern above. How would I do this?

[sbg2]

MyUPC_CalcField = Digit01 & "-" & Digit02 & Digit03 & Digit04 .... Yada Yada Yada.

I think you would be better off having the UPC entered as a straight 11 digit number and using a Calc field to obtain the check digit. Or maybe two fields - one for the first digit and 5 for your product code, assuming the manufacturer code (12345) won't change on the products you enter.