This idea has been merged into another idea. To comment or vote on this idea, please visit APP-I-2133 Release Gantt with rows/phases that can be ordered for a better visual layout.
When managing the roadmap, it would be useful to drag and drop/change the order of the rows. We may have particular phases or milestones that we want to visualize on the roadmap close to each other without other phases/milestones getting caught in between. This would allow a product manager to present the roadmap view in the most efficient / effective manner for their purpose.