CMultiDocTemplate question. Help!

Hi all,

1) Anyone can show me an example of how to create and use additional doc template?

2) Say i have Template A for "*.mpg *.avi" and Template B for "*.bmp *.gif",
how does the app knows which template to use automatically and opens the file
accordingly?

3) After clicking the File > New, where is a good place to pop up a selector with
icons of file types (like powerpoint template selection) to let user select the type to create? The
CDocManager?? If so, how can the CDocManager notify the actual file opening function
inside the App/Doc class?

4) I want to do something like, saving a frame of AVI in template A to a DIB and
create a new doc with Template B, how do I do it?

5) There is only 1 "Save" command in the 'File' menu, how does the app saves an
AVI and a BMP in this case?

thanks