Improvements are made to the Flange Command.
Set Flange Angle by Reference
New options are added that let you specify the flange angle By Value or By Reference. Use the By Reference option to select a planar face, a planar surface, an origin plane, or a work plane to set the flange angle.
Tip: Use Copy Object to extract a planar surface face from another component to use as a reference.
For more information on creating flanges, see To Work with Flanges in Sheet Metal and Flange Dialog Reference.