Help with Auto tool change on a TNC370 Control

Hi there,

First post so bare with me.

I've been tasked with using a Bridgeport VMC 1000/22 with a Heidenhain TNC 370 Control now from what ive read in the user manual it seems that it is possible to do an automatic tool change but cant seem to find any information on how to do this, Can anyone enlighten this young-ish Engineer on how this would be done!

Regards Sean