Autodesk Revit - With the Rebar Placement Constraints Customization in Autodesk Revit 2014, reinforcement is now updated based on any calculated changes. This release also keeps designs coordinated and accurate. You can
Revit 2018.1 New Feature - Free Form Rebar Distribution - YouTube
Free Form Rebar Aligned Distribution in Revit 2019.1 | JVI Inc.