Nokia Lumia :: 900 - Adding More Than 20 Persons In Groups?

Yesterday I finally wanted to organize my phone contacts. Why does the phone always go back to the group after adding a single member? I always have to click the add member again and then click the letter I was last and search for the next contact. This is very bothersome, why can't I select multiple contacts or at least go back right to where I last stopped.

Why in the world can I only add up to 20 members into a group? My family contacts is about 50 or 60 and my work contacts are at least 40 as well. Why is there such an arbitrary contact limit? If it is because of group SMS then simply make it possible to disable this feature for bigger groups.

Overall I find the people app very annoying. The Lumia 900 is a phone first, not a tablet. As such I would expect it to have all the features a phone needs. No phone profiles (Silent, Phone alert only, all alerts, etc.) no separate control for ringtone sound and all other sounds, no notification of missed events when the phone is locked.