Managing Layer Visibility in a Layout
To freeze or thaw layers in all viewports
- Make sure that you are in floating model space.
- On the status bar, MODEL is on and TILE is off.
- On the Object Properties toolbar, choose Layer.
- In the Layer & Linetype Properties dialog box in the third column, Freeze/Thaw in All Viewports, click the icon.

You can select a range of layers to freeze or thaw by pressing SHIFT as you click.
- Press OK.
Object Properties toolbar: 
Command line equivalent: LAYER