Hi Thomas,
you need to build a loop in the Workflow, using a condition and a data assignment step.
in the arithmetic expressions, a table column is handled the same way as a keyword field, you can use the index to access a specific value.
Example:
DW_TABLEFIELD[TABLE_COLUMNNAME][GV_Counter]
Just remember that the index starts at 0, as DW is coded in C#.
Hope this helps.
Greetings from Germany,
Simon H. Hellmann
DocuWare System Consultant