I used it sometime back, so you will have to check for accuracy.
If your col 1 has columns, A, B,C, and if you want to plit them into 2 colls, say col 2, col3, then in templates use templates Col2 template (fields A,B), and Col 3 template (field C), with dummy rows, it will split the columns in 2 collection as the template you have given.