Right clicking on Recipients will provide a context menu with four options.

•Add
This option creates a new group.

•Send Messages
This option sends a message to every group in the list.

•Resend Messages
This option resends a range of previously delivered messages to all groups.

•Cancel Messages
This allows you to cancel pending, scheduled and/or repeating messages for all groups.

•Scheduled Messages
This option displays a list of all scheduled and repeating messages for all groups.

•Find
This option allows you to search for entries in the recipients list.