Mobile app features that are missing from PC and web app.

I have recently became a Ring Central client. I have noticed some differences in the PC app and the Mobile Phone App. When I assign a task I can do a reply in the app to the task and it keeps it noted in the task but you can not do this in the pc app. In the pc app you can only respond in the team witch has all the task in it so you cant tell witch task your responding to. Where is the Reply to task like the mobile app has.