Edit the Wall Layer Library
You can edit the structural layer library of walls as follows:
- Select System | Libraries | 
 Libraries. The library browser opens. - Select the folder Custom Libraries / Wall Layers.
 - Select a library to see the layers stored in the library.
 - Select a layer, and select Properties from the right-click menu.
 - Edit the data.
 - Click OK when you wish to save the data and exit the database view.
 
Note: 
  - System tab is only available if you are a system administrator.
 
