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In the process of drawing drawings using Haochen CAD software, when annotating CAD drawings, measurement values are generally marked by default. But when we need to add some special symbols or mark some non-proportional values, such as adding text or tolerance on the basis of the measured value or replacing the measured value with other values, how should we modify it at this time? Next, I will introduce to you the operation tutorial of modifying and setting CAD dimensioning in Haochen CAD software! Modify the steps for setting CAD dimensioning dimensions: In fact, it is very simple. The numerical value of the CAD annotation in the Haochen CAD software is text, which can be modified with a simple editing command. The shortcut command is DDEDIT (ED). Enter shortcut commands on the command line: After ED, press the Enter key to confirm. Click the marked text to pop up the multi-line text editor. Whether to retain the measured values and what format to use for labeling can be modified according to your own needs. As shown below: In addition, in Haochen CAD software to modify the dimension, you only need to double-click the text of the dimension, and the DDEDIT command will be automatically executed. You can modify the dimension without entering a command. As shown below: If you do not need to enter a special text format, you can also modify the label text in the "Text Substitution" column of the property box (CTRL+1). As shown below: If you need to fill in symbols such as tolerances, you need to use the stacking function in the multi-line text dialog box. The above are the operating techniques for modifying and setting CAD dimensioning in Haochen CAD software. If you encounter such problems in future drawing work, you can refer to this CAD tutorial to solve them.~