Adding users by group rather than individually

When adding team members to a project, I know you can search for and add them individually.

A client has asked me if it were possible to add team members by group instead.

For example, suppose LDAP were setup and they had a a group called "Product_A_Developers".

When they create a new RTC development project, they want to add all the members of the "Product_A_Developers" group.

Is there any way (either directly or indirectly) to add all the members of "Product_A_Developers" without having to do it individually?

Can you just add the group or import all members of the group?

Thanks

Andy