Problem:
Because changes to your ADIS configuration effect your whole environment how can you have more than one ADIS configuration on the same machine?
Resolution:
ADISCTRL is the name of the disk file that holds the ADIS configuration and this can be moved from one $COBDIR directory to another. If you need two different configurations you can have two different ADISCTRL files in two different $COBDIR directories on the same machine and change the value of $COBDIR when you want to change between the two configurations.