The membership manager is a tool for selecting memberships based on a set of criteria and then editing, deleting, or mailing to those members.
When to use this tool

Finding memberships
On the right-click menu
Right-click on a person on the list to modify individual memberships or perform other actions.
Add a new membership  | 
Creates a new membership of the type that you select.  | 
Edit membership  | 
Edits the membership itself.  | 
Edit member  | 
Edits the owner of the membership.  | 
Delete  | 
Deletes/un-deletes this membership.  |