Dropdown And Empty Fields In Excel-Datasheet Follow

Hi there,

just started creating labels with bartender and i have already installed the dropdown-menues successfully in my label. 

But here's my problem.

I have 90 products and 20 Fields on my label, each connected with the excel-datasheet which includes the products by a dropdown-menue. That run perfectly. 

But i need a solution for the case if i only want to print the fields 1 to 12, for example. And the remaining 8 fields should not be printed.

What shall i do?

I can't start with an empty field in the data-sheet, otherwise the bartender reports an error.

Can anybody help me?

Thanks,

Alex