Backup exec 2010 does not load tapes from the autoloader slots automatically

We are running Backup Exec 2010 to administer an HP 1/8 G2 tape autoloader. When manually moving the tapes from slot to drive, it works. We configured device pools to include multiple slots, but Back Exec does not unload and load the subsequent tapes to continue the backup. Also we would like to run jobs consecutively without human interaction.

I would like some assistance in realizing the above mentioned.

Regards

jt.