When creating families, rather than locking extrusion lines to other lines within the family, what should you align and lock them to?

After creating a dormer's roof and walls, how do you create the dormer opening?

If you have mutliple windows open, how can you easily snap them to all display on the screen at once?

What is a first step in creating a roof?

General parameters of an object can be modified in the:

All views, plans, and elevations can be navigated in the:

How can you quickly add trim to exsiting roof plane edges?

How do you quickly focus the camera on a specific object?

What does the formula: abs(-2) do?

Ho do you remove items from a schedule?

What is the layer key file?