Using Auto Pilot and a changer

The job defines a 5-day backup procedure which will preserve all weekly tapes. For this set, the network administrator has decided on the following:

Reading Table 2, we see the following trends:

each week, a new slot becomes allocated, permanently, for the Friday (weekly) backup.
after 8 weeks, the last blank tape is used. More blank tapes need to be loaded in the changer for the next weekly backup.

Use this key for Table 2: