Delete Form Components
Use the Delete operation to delete form components.
To delete any component
Move the cursor to the component and choose the Delete operation.
To delete a box created with the Box/Line operation, place the cursor on one of the box's borders, not inside the box.
Note: You cannot delete a line if it contains any components.
You can immediately use the Undo operation to reverse the Delete operation if you change your mind about deleting a component.