Calendar Sharepoint 2010 in Visual Studio

Hello, I need to edit a calendar in Visual Studio.

This calendar was created natively by sharepoint.
Now I need to make a new in visual studio (web part), like the image below..

My question is the following:

1 - I can get the guid of my native Sharepoint calendar and develop from it?

2 - How do I use the daily group model like the image below?

3 - I can enjoy the  calendar that already exists and edit it in VS2010?

4 - Should I create from the class SPCalendarView?

I thank you all for the help!