Missing explaining documentation

I can remember some old Reload documentation. Daily backups, weekly backups (portable) and a conceptional explanation how to use and to schedule.

I have checked the existing documentation and miss this part. GWDRs concept has been changed - ie. there are no portable backups now. The whole post office backup job explanation is a 1-pager, where a lot of settings are not explained:

But maybe I missed the right documentation ...