1. Select Edit Mode to open your drawing;


2. Tap Settings in the upper right corner;

3. Find Dimension settings in the Settings page;

4.Tap Dimension settings, the Arrow and Suffix options would pop up;

5. Tap Arrow to set the dimension style, tap Suffix to enter the suffix required, and then tap OK to complete;

6. After completing the settings of dimension, the new dimension will apply the style we just set, as shown in the following picture:

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