Railings are one of those architectural elements that are frequently used in the landscape. If you have stairs, ramps, or any sort of terrace, you will probably need a railing. And while Railings are relatively easy to create in Revit, they can be quite difficult to fine-tune (and detail) accurately.
One of the reasons that Railings are difficult to manage is that they are rather inflexible regarding both their structure and their hosts. Railings can be hosted to Floors, Stairs, Ramps, or just a Level, with the limitation being that they cannot host to shape-edited Floors. But there is a feature that will allow you to give a single Railing multiple and varying slopes.