We all know how to stretch an object using grip of that particular object in AutoCAD .For some of those who are wondering how to stretch multiple objects using grips i.e. endpoint or midpoints , please follow the below steps.
1.Select several objects which you want to stretch.
2.Hold down shift key and click several grips so that they are highlighted (red color).
3. Release Shift key and select a grip(point) as the base grip by clicking the grip.
4. move the pointing devise and click anywhere.
Thats it ! we are done stretching multiple objects at a time.