Saved Views
Saved Views give you instant recall of visibility settings within the programme
Navigation Palette

This is a useful and powerful palette which helps reduce the number of clicks needed to achieve all sorts of navigational tasks
Navigation Palette – References
This section of the Navigation Palette is where you have access to most of the ways you control any referenced files in your drawing.
Navigation Palette – Saved Views
The Tab of the Navigation Palette with list all of the Saved Views in the file.
Navigation Palette – Viewports
This will show a complete list of viewports in the file.
Navigation Palette – Sheet Layers
This Tab shows a list of all the Sheet Layers that have been created in the active file.
Navigation Palette – Layers
Like the Classes tab, this shows a list of Design Layers in the file
Navigation Palette – Classes
Some drawings can become highly complex with many Classes and Layers to deal with