iPad iPad keyboard extra button

I used to have a tweak that added extra customizable button to my iPad keyboard and i loved it, I add a key that contain my E-mail address on it, and every time i wanted to type my email I was just taped that button and it would typed all my email, so simple and fast, now after some month I can't find that tweak and i needed that so much.

 

Hi Mliii, thank you for your answer, I knew that already. The problem is I want to add more than one key, I try to learn php (programing language), I want to have all my numeric keyboard and some of the punctuation symbols on my first keyboard screen. I installed Ikeywi tweak. And it is working well. Thanks again Mliii.