Macros in Autocad, are they useful? could you give an example of use?

i hope  this helps you

https://www.youtube.com/watch?v=7FicvnUKFOM

It defines the action that should be performed when a user interface element is used. It can be as simple as a command and include special characters such as ^C^C

Thank you for the invitation

If you repeatedly perform the same drawing or editing sequence, you can turn on the Macro Recorder to record the sequence as you perform it once, and then replay it endlessly. (“Holy macro, CadMan!”) See the ACTRECORD command.