Possible but untidy and usually unwise. Rule of thumb is not to descend at greater than 1000fpm beyond the FAP/FAF. Selecting a higher rate of descent might make it difficult to maintain a stabilised approach depending on the thrust, drag and configuration of the aircraft. Another problem that springs to mind is that you are in an open descent. Finally, unless both crew have plenty of spare capacity you could find yourself in a situation where both crewmembers are losing situational awareness by focusing on capturing the GS and perhaps missing something crucial (checklist, configuration, proximity to terrain, clearance to land, vehicle on runway, flock of birds etc etc)
sr