[hobbit] multiple RRD graphs for a single column

After looking in to this a little more, I found another thread that mentioned the "<!-- linecount=10 -->" in the HTML file for the pages that have multiple RRD graphs. Is there any way to control that manually?

How can I get Hobbit to display multiple physical RRD graphs for a single

column of data? Specifically, I'd like to have two distinct graphs (each with their own Y-scale) for a single data column that is being generated from an external script. This would be similar to how Hobbit sometimes shows multiple graphs under the "disk" column. I can't seem to find this anywhere in the documentation.