You can reshape an object by adjusting a point's handles using Points tools. These Point Tools are consist: Move, Add, Delete Point.
Note: The point tool work is depend on the nature of the object.
For example add/delete point only work on polyline, polygon, and path object
To adjust the point of selected object or objects:
Note: you can press and hold Shift Key for constraint
To add a point to selected object or objects:
To delete a point from selected object or objects: