Answer:
If you apply a moving load from the library of load models, you can specify the "thickness of dispersal layer" and "angle of dispersal" (see Image 01). Based on these entries, RF‑MOVE Surfaces determines the length and width of the rectangular surfaces and generates free surface loads.
As an alternative, if you have entered concentrated loads as moving loads, you can right-click the free concentrated load and convert it into a surface load using the corresponding option in the shortcut menu (see Image 02). There are also parameters for controlling the load width.
