Greek letter shortcuts in Keynote 6.5

I recently switched to Keynote for writing scientific talks. I use tons of greek letters and need a fast way to type them in. I have seen on other questions and forums that people just change the auto-correct settings to replace things like \lambda with the Greek letter. However, in Keynote 6.5 I cant seem to find the auto-correct settings to do this. Its looks like they moved it out of the preferences menu. Anyone know where this is, or have another solution?