While logged in as root, execute edge.cronset, configure the
unattended Incremental, save & exit.
At the root prompt "#" type crontab -l to verify the line entry
containing /etc/edge.nightly -IB ...
Once this is verified edit the file /usr/spool/cron/crontabs/root,
change /etc/edge.nightly to /etc/edge.increm. Save the change,
then copy /etc/edge.nightly to /etc/edge.increm.
Execute edge.cronset to configure a Master Backup for Sunday only,
save & exit from edge.cronset to put all changes into effect.