Windchill Document Version system configuration changes

Hi,

Current Document Version system is as below

First Check in: -A.1 (In Work)
Iterate: -A.2, -A.3 (In Work)
Revise: B.1 (Released)
Iterate: B.2, B.3 (In Work)

I'd rather want to do this:

First Check in: -0.1 (In Work)
Iterate: -0.2, -0.3 (In Work)
Revise: A.1 (Released)
Iterate: A.2, A.3 (In Work)
Revise: B.1 (Released)
Iterate: B.2, B.3 (In Work

Please HELP.

Thanks & Regards

Manish Prasad