Copying opportunity fields into meeting created from opportunity

[psateesh]

Hi Guys,
This is my first post. I am going crazy to figure out code at which opportunity fields getting copied
to meeting.
Please guide me in which file/ part of code I need to change the code ?
Advance Thanks,
Sateesh.

[psateesh]

I figured out that required fields have to be propagated to opportunity formformMeetings form in detail view. But still do not have idea how to do this as well.