The Display menu > Show Section Properties command accesses the Section Properties form. This form serves three functions:
It displays the section properties. See Section Properties for additional information.
It allows you to view, but not edit, the section base material property. Do not confuse the section base material property with the material property of one of the shapes that makes up the section. See Section Properties for additional information.
For frame sections only, it allows you to modify the local axis angle for the section. This is the angle from the Section Designer X axis to the section local 2-axis. Positive angles appear counterclockwise as you look down on them as illustrated in the sketch below. You can not modify the local axis angle for wall pier sections; it is always 0 degrees.