How to modify the EP pages in AOT?


I am using AX 2009. i need to add one extra field in EP pages. i know the page name, i found in AOT–>WEB–>WEB Menu Items–>URL… how to modify the pages in AOT. Its live system. i dont have visual studio to work on this. Is it possible to modify the EP page in AOT without Visual studio? if yes, please reply ASAP.

Thanks in advance