Ability for an internal user to subscribe a customer to receive updates on an ideas ticket Merged

We bulk imported a large number of feature requests from a legacy process into an Aha! suggestion portal for our customers. Internal users use proxy voting to associate customer accounts with these ideas. However, the end customer would also like to receive updates, but does not want to have to manually search and click to subscribe to many ideas tickets. It would be very helpful, if internal account reps could subscribe specific account users to ideas tickets, as needed.