When I scale vertices of an object that has a Mirror modifier, the points scale about the median of the non-mirrored points only. How can I configure Blender to include the mirrored points in the calculation of the origin?
If you don't have a Mirror Object, the symmetry lies on the object center. So one fast way might be:
- Out of editmode with TAB
- SHIFTS+3, cursor to selection
- TAB again
- . for cursor as pivot point and scale (change back to Bounding Box Center with , or Median Point with CTRL,).