With this forum's help, I was able to create a parameter in my upper cabinet family, that let's me have a choice in the project to turn off/on the "task light lip" for a particular upper cabinet. Much thanks for that. However, when I turn off the "task light lip" on my project for an upper cabinet, the height does not stay at the parameter height. It should be 7'. When I uncheck that parameter, the case work shifts down the height of the "task light lip". I need my upper cabinets to stay at the contrained height of 7' to top of cab. Here is one of the family. Any help would be greatly appreciated.