Use the options in the Model tab > Level and Sets panel > Selection menu to select or deselect entities in a Level or Set:
- Select All — Click to select all entities on the specified Level or Set:

- Select Wireframes — Click to select all the wireframe objects on the specified Level or Set.
- Select Surfaces — Click to select all the surface objects on the specified Level or Set.
- Deselect — Click to deselect all entities on the specified Level or Set:
