Moving Objects Symmetrically with a Fulcrum-selected Mirror Plane

  1. Create a plane or planar face.
  2. Select one or more objects.
  3. Click the Move tool.
  4. Click Symmetric Move in the Move Options panel.
  5. Click the Fulcrum tool guide.
  6. Click the plane or planar face to specify the symmetry plane.
    Objects on the other side of the fulcrum plane with matching geometry are automatically detected and moved symmetrically about the plane.
  7. Drag a rotation or translation arrow on the move handle to modify the geometry symmetrically about the fulcrum-selected mirror plane.

Example:
Pivoting an edge modifies the matching geometry on the other side of the fulcrum-selected mirror plane.
Moving faces that are symmetric to each other but lie partially on either side of the mirror plane. The center of each of the objects' bounding boxes is on either side of the plane, so the symmetric move tool can detect the symmetric geometry and the angled faces can be moved.