For multiple teams and projects. Load any Jira data e.g. projects, boards, JQL
From the board there are two menu items Agile Delivery and Agile Roadmap.
For Agile Delivery all board issues are automatically loaded and the complete solution except roadmap is available. Agile Roadmap is a standalone advanced gantt roadmap. It enables you to construct your roadmap with any issues comparing to the build in Jira roadmap that only supports issues in the project.