I was watching a video of Matt Cutts about nofollow and dofollow relations. He stated that every outbound link shouldn't be as nofollow. Sharing PR juice is good too. So I got an idea to add this features into add link dialog box so people won't have to add it through HTMl code parameters. Plus it would be in Advanced tab so normal users have it off their sight.
Please guide me to start.
Question 1 : Where I can find the code of this dialog box?
Question 2 : Will there any problem while updating wp?
Question 3 : Can I inject it through function.php?
I really appreciate everybody's time so please if you know any tutorial or any link that could guide me, it will help me as of now. I will then try to dive into the depth and post incase I'll have any specific problem.
Thank you very very much.