To rotate points:
1. Click Edit
Points to enable point editing (if needed).
2. Click the
Rotate tool, or press R.
3. Select the points
you want to rotate, or select Edit > Select all to select all points.
4. Click and drag in a
circle around the selected points. The points will be rotated about their common
Unless you want to rotate individual points, it's easier to rotate the
entire object instead. See Rotating Objects
for more information.
Normally when rotating objects the rotation angle will snap every 90
degrees. You can prevent this by selecting Tools > Angle Snap to turn
off angle snapping.
Inserting & Deleting
Undoing and Redoing