How to understand Verify and Preset when defining an attribute?

The Verify and Preset parameters are not easy to understand, because we can barely see the difference before and after we make change to them.
The Verify and Preset parameters are not easy to understand, because we can barely see the difference before and after we make change to them.
CAD provides many ways to calculate the area of an object, do you know some other ways? Please feel free to share your experience by sending an email or leaving a comment below.
What is a group in CAD?
The Group is not a commonly used command in CAD. It is used to create and manage the saved object group, and it can be seen as a named selection set and after grouping objects, users can select all the group objects.
The DRAGMODE Command is used to control the way dragged objects are displayed.