How to change IPB static pages? (like contact form)

I want to edit contact us page but I cannot find the HTML code anywhere.

I tried:

• Searching all files for text match of contact us page code
• Editing theme code and searching for contact template

Without luck. If anyone has idea how to change index.php?/contact please tell me.

Also not only contact other pages.

The best way I found is to either make a theme hook in on of your applications or a code hook to display your own form and template. Be sure to call the parent function though and return the correct values, if any.