[Solved] Easy way to do this (configuration problem)?

I have a config similar to this but with much more variables:

Code:

anim1:
    state:
        frame: 3
anim2:
    state:
        frame: 1
anim3:
    state:
        frame: 5

and let's say that I want to delete anim2 and rename anim3 to be anim2 (so it still has the same variables, just a different name). How would I go about doing this? I've messed with getNodes and Map, but I haven't gotten it to work.

I think I found a roundabout way of doing this with getKeys() http://forums.bukkit.org/threads/question-about-looping-through-data-in-yml-files.24421/

EDIT by Moderator: merged posts, please use the edit button instead of double posting.