How do i use my own set of emoticons in yahoo IM window?

I have some gifs which i would like to use as emoticons while chatting with other users. How to use them in the IM/ chat window? Also, how to make shortcuts like :) etc for them?|||You can't really do that, unless you use some program like Smiley Central.|||you cant use your own code i n yahoo that you made those emotes with