In addition to the Guide Lines feature, the relative construction methods also constrain the element construction direction to a constant angle or offset. They are accessible from the Drafting Aids toolbar:
They can also be accessed from the third button of the Control Box.
Note: The Control Box is not visible by default. To show it, choose its name from the Window > Palettes menu.
See Control Box for more information.
These Relative Construction Methods are described here:
Parallel and Perpendicular Constraints
Offset and Multiple Offset Constraints (Relative Construction Methods)