Project-scoped app creds - Best practice

Hello all, Relatively new to OpenStack. To my understanding, application credentials are bound to users. Is there a way to bind them to Projects (I assume not) or, perhaps, Groups? My naive thought on a possible solution is that if a group has access to a Project, a "generic" user account that everybody has access to could be used for the application credentials. (The use case here is to not bind an app cred to an individual who might leave the organization, thus making the app cred secret lost.) Thanks, Ryan