don't understand fully what you mean but from what I understood
you wanna change or replace the text:
when you check the text you haveto click on "paste original text" or "show original text" or something like that where the field is empty as it comes out empty at first so you can type what you want, there's a button next to the text area click that to show the arabic (or) english text that is originaly there
hope thats what you meant to find out hafiz
takecare, if you don't understand, reply and I'll upload some images to show you
Thanks a bunch Khaled for this post, been searching for this!!