Hey Ricardo and welcome to the forum,
Beans is indeed built to make such modifications very easy. To modify markup and attributes, you will use the Beans HTML API and to move things around, you will use the Beans Actions API. I suggest to start by reading the articles I just linked to to start with.
Then I would suggest to post precisely what small change you want to make on your post so that we can help you with the code snippet and get you going 🙂
Thanks,