The Web Dashboard control allows you to combine dashboard items into a group. The dashboard item group serves two main purposes.
To create a new group, use the Group button (the icon) in the Toolbox.
You can combine dashboard items into a group using several ways.
A dashboard item group cannot be added to another group.
The dashboard item group provides the capability to manage interaction between dashboard items within and outside the group.
The Master Filter option allows you to specify whether the current group allows you to filter external dashboard items using master filter items contained within the group. If this option is disabled, master filter items contained within the group can filter only dashboard items from this group.
The Ignore Master Filters option allows you to isolate dashboard items contained within the group from being filtered using external master filter items.