You can edit most items inside of AutoCAD by using a technique called grip editing—working with drawing objects by using their grip handles, which are small squares that appear on the vertexes of drawing objects you select.
Selecting a drawing item sets it to grip-edit mode so that you can work with it.
To activate grip-edit mode
Select the item. Grip handles appear.
To cancel grip-edit mode once you have made your edit
Press the Esc key.
To cancel grip-edit mode and not save your changes