Made a folder on DeviantART for any tutorial or help guides for using Paint Tool SAI 2. You can find it here: https://hitaka5ever.deviantart.com/gallery/55217603/Paint-Tool-SAI-2-Stuff
If you would like help with anything else regarding the program, let me know! I might not be able to answer all inquiries, but ask anyway!
PS: I've been using SAI 2 since October of 2016 and I get the new updates of the beta almost as soon as they come out, so stuff might change over time. So far, the info in the folder hasn't changed much at all