VC models

Hi,

I wanted to know can we make changes in the models created by other users. Can u do parallel development on the same model. Where are the models stored?

Also I wanted to know how can I get the option of deploying VC application in webdynpro. I saw in under Tools->Options->Compiler. But I found option for Flash and X-Graph only. I am using VC 7.0 SP7.

Please help.

Regards,

Aamod.