You can use hidden lines to display elements that are not visible in a view. For example, suppose you have an entrance on the south elevation, and you want to show an outline of this entrance using hidden lines on the north elevation.
To show hidden lines
For example, in the sample above, you would open the north elevation view.
When you switch the view back to Hidden Line mode (on the View Control Bar, click Visual Style: Hidden Line), the obscured element is visible.