You are easily able to create groups of stores, then add and remove stores and individuals to those groups.
To get started, hover over the Configure tab, then select ASC Hierarchy.
To add a new group, highlight the group in the current list where the new group will reside.
In the space provided, name the new group, and click Add Group.
Find the appropriate stores and individuals in the sub-tabs to the right, and simply drag and drop them into the new group.
To remove stores or individuals, reverse the process.
To remove a group completely, highlight the group, and click Remove Selected Group.