This article applies to a Board 1.0 which will be replaced by Board 2.0 starting with BP version 8.0.
This can be also configured and change in the Program's configuration:
JIRA Scrum Boards sync
Single Sprint per column, up to 7 on screen (screen width greater than 2400 pixels is required)
Multiple Sprints per column
In this mode the synchronization of the Iteration with Jira is disabled.
Recommended for playing around and non-agile projects with pre-defined work that only needs to be manually updated from time to time.
Small Team mode
This mode synchronises bi-directionally with JIRA Sprints. This means that moving your tasks around will change their Sprints, and changing Sprints will affect the Roadmap.
It is recommended for Agile teams who use a single Board for everyone or the vast majority of people, as each Cadence represents only a single Sprint. In this mode, the Roadmap is essentially a multi-Sprint view of a single board with enhanced capabilities (timeline, issue links, Cadence backlogs).
All Teams share a single (master) Board in this mode.
Large Team mode
Available only in the Enterprise edition of BigPicture.
In this mode the Iterations specified in the Agile Schedule sync with JIRA Sprints and is Recommended for adopters of The Scaled Agile Framework®.
Each team can use their own Board, and Iterations roll up the work of all teams originating from multiple Sprints.
Great for large-scale companies as it provides the big picture of all the Agile things on a single screen.