Thanks for your input.
Perhaps my Android-vocabulary needs improvement, but let me explain again what I'd like to do.
The N7 home screen has a central area whjch displays upon power-on and shows icons of my installed Apps. There are also screens that I can access by swiping left or right. At present when I swipe left I see an agenda (Widget?) from Google Calendar.
Is it possible to see this Agenda screen displayed upon start-up? Following your suggestion I suppose I could move the Agenda widget to the central home-screen area, and move all (25, so far) App icons to one of the side screens. Thought there might be an easier way. (Isn't this similar to folks having a fancy home screen that they see on power-up --clock, weather, wallpaper, etc. How do they do this??)