Select the Available Structures

You can enable or disable a structure in a floor and ceiling library as follows:

Select System Settings > Building Component Libraries > Horizontal Structures. A dialog box opens.
Select a library and a group from the Horizontal Structure Libraries and Types list. You can only edit the library data of structures in customer-specific libraries.
Select the thumbnail.
Right-click to open the context-sensitive menu.
Select Properties.
Do either of the following:
- Tick the Active checkbox. The structure is now available, and users can select it to be added.
- Clear the Active checkbox. The structure is now disabled and will be unavailable. The structure remains in the library, and you can re-enable it later.
Confirm by clicking OK.