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When drawing a Dell notebook with CAD, you must press FN every time you use orthogonal F8. How to set it if you don't press FN every time? . .
1. First of all, orthogonal planes are generally used to draw straight lines. Select the straight line command in the attack battle, as shown in the figure below.

2. When drawing a straight line at this time, you can see that you can draw at any angle, as shown below.

3. Click the orthogonal shortcut f8 at this time, and the straight line will immediately become a horizontal angle of 0 degrees.

4, or the vertical direction becomes 90 degrees, as shown in the figure below.