The default is a daily digest issued just after midnight local time. Let me know if you want a weekly digest and on what day. You may also have everyone receive a digest by default but that is rather rare. The index option is available if you have notebooks and a digest - you don't have to do anything else. Users may set their subscriptions to digest or index using the SET command once they are subscribed.
Topics allow subscribers to specify which messages from the list they want to see.
If you would like to be able to store files in addition to the list notebooks let me know. But other special files require that we set up a list catalog. This is automatic and is simply determined by whether the notebooks and other files are private or public. There are lots of other options as described in the Owner's Guide but these give us a good start. We can adjust most of the other options as we go along.