Sounds like other requests I've had, usually from CAD Managers of large firms, who would like to limit the amount of damage their CAD techs can do to a model, determined by their work environment profile when they sign in. Actually, some have asked for functions to be stripped out completely!
The answer is no, work environment profiles cannot be integrated into the sign in process. You could set up a work environment profile on the server, specific to each task and ask your cad techs to use the respective profiles as necessary, but that's about the extent of it AFAIK.
Cheers,
Link.