Of course yo can also use the Create (Create-In-Place) Tool from the bottom of the Modeling tab on the Design Bar. This allows you to create solids and voids that can be assigned a category and scheduled. In addition you can create your own parameters in the project or shared parameters to be use in multiple projects. Anyways Create-In-Place solid/void geometric objects are more flexible than slab edge profiles, since they are almost equivalent to creating a family and can be copied and pasted into other projects.
Mel Persin, AIA