I don't know if you've received an answer on this yet but I was trying to decipher it myself and came up with this solution.
Under components I changed the name on the name on the component that I wanted to add the Batt insulation to to reflect it (Stud-Batt). I then went to the materials tab and selected the component and clicked on the right lower button (Add New Material) and created a name/description (in my case "Thermal Insulation.Batt").
I then clicked on the Edit Materials button (just above the last one); under the Display Properties tab and the General Screened (or whichever display you want to use when you see the walls rendered) click on the upper right Display Properties button.
Under the Hatching tab you can select the hatch pattern, select type "Custom", click on "Browse" and under the Custom Tab you should see at the top "Batt_Insulation.pat", select it. You'll want to make sure the angle is set to 0.0, and scale to possibly 5? You can go back and forth until you like the looks of it. In pic 3 of the 2012 response it also had an offset of 1/2", not sure yet what that does.
Hope that helps.