If Type is set to Distributed Load, then the dialog will look as shown below.
Force
Moment
A distributed load can be applied to curves and edges which consist of beam/bar elements only.
The distributed load can have a Sub Type, like Force and Moment. It has a Magnitude option in different directions with respect to Global or Element coordinates.
The distributed load can have a variable load definition as well as custom display properties such as color, size, and density.