Angle Planes - No "Model for Projection" Option


Operating system: MacOS Big Sur 11.4
Slicer version: 4.11.20210226 r29738 / 7a593c8
Expected behavior: Option to choose selected volume in “Model for Projection”
Actual behavior: No option exists

See Attached screen shot for example. When I would like to add custom planes based on landmarks I determine. But no option exists under “model for projection” when compared to tutorial: 5E Angle Planes - YouTube