Redmine

My company is currently using Redmine and we love it. I have ran into an issue though. We have a group of developers who may run into the same problem. Instead of them all sending an issue in, only one will. Once I have fixed the issue I can update it and close it out. The problem I have is that when an update is done, only the person who made the ticket and myself see that is has been updated or closed out. Is there currently a way to add more people to the email list on an issue and if not could that be easily implemented?