I seem to be setting up my products incorrectly when it comes to "custom" cabinets .  I have a tall starter that I added 3 sets of doors and some adjustable shelving.  I need this product throughout the project and when I go to add a finished end I loose shelf holes and doweling.  I know it is coming from the material thickness of the added finished side but where do I fix this to have a fully parametric unit?  I always run into this and I end up modify sized and moving to get the routing back but figure there is a more correct way to do this.