Configuration » Mail Lists: Properties Members
Adds a new mail list with default settings (mostly empty).
Note on naming new lists:
Although the names of Accounts and Mail Lists are completely independent, it is suggested to give the lists a name that contains the Account name it is later assigned to. For example, if you have an account named "family", the list may be called "family" as well or something like "family-list".
Adds a new mail list, using the settings of the currently selected one as defaults.
Deletes the selected mail list.
Reference: Mail List Files (*.hml)