Hi, Aleksey

That's a good question, and I actually changed the category of your Thread to "Question" because of it. Those menu items are actually static and set by us. What I can do, however, is submit a feature request to allow a domain administrator to change what's shown by default and what's shown in the More dropdown. I can see the value in that as some may want things like News or even Online Meetings to be in the default menu versus Tasks, etc.