Cheyne Bird in our Adelaide, Australia office brought this technical solution to my attention and I thought I'd pass it along here.
A little bit of background might be useful. First off, this tech solution won't be of any use to you unless you have Revit on subscription. Secondly, this tech solution specifically works with the Frame Generator extension that you can download and install from your Autodesk Subscription site - it is found in the "Product Enhancements" section and is part of the "Revit Extensions"
As is defined by the associated help file, "The Frame generator extension is used for quick defining of simple 3D models of one-bay or multi-bay halls. It includes the load definition, carrying out calculations, designing steel bars and generating documentation for the calculated structure." All in all, a pretty nice extension!
The potential issue arises when you need to generate framing with a structural shape that doesn't already exist in the available frame database. This might not ever be an issue for you, but if it is, now we have an opportunity to understand how to customize the cross section shape database to get your custom forms into the software.
Take a look at the solution defined here:
Please understand that this involves editing XML tables and you will REALLY want to make sure you have backups of all the associated files just in case you get a comma, bracket, or decimal point in the wrong place and inadvertently corrupt the database.
Hopefully this is useful to you, and be sure to have fun!