How to change wss group default rights

[Lionel Gomes]

Hi,

We would like to change the default rights that Project Server set on WSS groups when it create a new wss site for a project.

Ie : As an example, when Project create a wss site, it also create a “MSP reader†group with some rights. We would like to define custom default rights ?
Is that possible ? If so how ?

Thanks,
Lionel