Issue with Mantel Symbol

[Rosco2017]

I'm creating a fireplace mantel out of a counter top and cabinets, and I'm going to convert that into a millwork symbol and add it to my library. I can't figure out how to make the back side of the mantel (the side that will sit against the fireplace) flat with no moldings. I know I can click on the counter top and turn the molding off on that back edge, but how do I stop the molding on the back of the cabinets? Attached is a pic of the mantel and the plan. 

Schmucker Mantel.plan

[Dennis_Gavin]

don't use a molding on the cabinets but instead use a molding polyline.

[joey_martin]

Yes...molding polyline.

[Rosco2017]

Thanks guys. I'll give it a try.

[Greg_NY61]

Ross, I set this up for you, I couldn't find one molding you used under the crown.

 

There is a copy there just convert that to that molding pline and add that missing molding, after that use point to point  and put it in place and use Transform Replicate in wall elevation and move that molding in place.

Schmucker Mantel_revised.plan

[Rosco2017]

Greg, Thank you for taking the time to help me (once again lol) I figured it out and was going to share it. I just can't figure out how to export it as a library file. That molding you couldn't fine I created in chief. My builder buys that profile in bulk, so I wanted to be able to have an exact model. Thank you again for helping me!

[Rosco2017]

Again, thank you for all the help, Here is the final product. (Please note: This symbol was created in Chief Architect Premier X8)

Custom Mantel.calibz