On the Tools menu click Snaps to select Percent Along when the command prompt requests a point to use this modifier.
BEARING locks the rubber-band cursor to a bearing angle that you specify. You can use BEARING whenever CC3 prompts you for a point. Unlike PARALLEL, PERPENDICULAR, and ANGLE TO, this modifier doesn't ask for a reference entity--the angle is measured counter-clockwise from 0° at 3 o'clock (horizontal). The BEARING modifier works a little like polar coordinates, except that here you specify distance visually instead of typing both an angle and distance.
Usually you will place at least one point before selecting BEARING. The prompt reads "Angle [prior]:". The prior value (in brackets) is the angle CC3 calculated the last time you used PARALLEL TO, PERPENDICULAR TO, ANGLE TO, or BEARING. You may:
Accept the default or prior angle by pressing the right button or ENTER;
Type a positive or negative angle, which can include amounts like 11.05 or 22+-1/2.
CC3 returns to the command you were using, but now the rubber-band cursor locks to the angle you specified. The prompt changes to "Select point:".
Stretch the cursor in either direction until it looks the way you want, then select the next point for your command.
Tip: Use the prior angle to draw a series of parallel entities without having to select a reference entity over and over. Use PARALLEL TO for the first entity (this sets the default angle). Use BEARING for the rest of the parallel entities, pressing the right button each time to accept the prior angle.
Text equivalent: BRNG