For the remaining options, see Lines
NOTE: If a double line or multi line is selected, the items in the Info Box relate to double line or multi-line properties. See Line

Center Coordinate: The coordinate of the center on each axis.
Radius: The radius in Drawing Units.
Start Angle: The starting angle of the Circle/ Arc.
Span Angle: The span angle of the Circle/Arc.
Length: The length of the circle/arc.
Lock Radius: Keeps the radius the same while editing.

For the remaining options which are not described above, see Lines (Vectors) and Curves

If a plane is created as a line, the Info Box items will be the same as for lines. If the plane is created as a plane, you can define its material here (see Materials).