With Revit 2020.1, constrain any shape of driven rebar sets in a project together at a specified distance regardless of bar shape or style: https://autode.sk/2HfDlMr | Autodesk Revit

Improving scheduling and annotation of rebar in your documentation, free form rebar now either matches existing rebar shape families or creates new rebar shape families from its bar geometry. Learn more about Revit 2019: https://autode.sk/WhatsNewRevit | Autodesk Revit

Revit 2019.1: Use the free form rebar tool to create rebar sets with planar bars distributed along the faces of a structural element and aligned to a distribution path. Learn more about Revit 2019.1 autode.sk/nhu4 | Autodesk Revit