Adding a Field to a Fence Diagram

Hello, I am new to gINT. I am trying to make a Fence Diagram with 12 boreholes that were grouted in 5m to 10m intervals. I want to show the volume of grout for each interval on the Fence diagram.  I added a field ("Grout Volume") in the borehole Lithology for the volume for each interval.

So far I have been able to get all 12 boreholes with intervals, and color coded based on grout type (I created a new MATERIAL graphic for grout types). I\

How do I get the field Grout Volume to show up in the Fence diagram, centered in the correct interval?

Thank you for all your help.