Cost Analysis for time spent

Would it be possible to have a way of automatically adding a cost for time spent on a client linked to the timer on the file? Or a way of adding manual time spent without running the timer? For example, if an admin works on the case, it would be good to set a price per hour for them, different cost for the adviser etc. With an overview at case level or client level as to fees received versus time and cost spent? Think this would be useful for consumer duty reasons and business planning etc.

Thanks