The "Enable Ortho" option allows you to keep your lines perfectly straight while drawing, aligning them to specific angles (typically 0°, 45°, 90°, etc.). This is fundamental for quickly and accurately applying measurements, ensuring precision in your takeoff.

Step 1: Begin a measurement or assembly.

Step 2: Go to "Options" and select "Enable Ortho."

Step 3: Your lines will automatically snap to the nearest predefined angle, keeping them perfectly straight.