Can someone explain how to use the new feature of checkbox. Thanks

Hi, I’m new here, not understand anything 🙂 For example, found patches 0.0.1 and 2 and 3 and 4, which one should be installed and how ?? What’s SSH? Where to find it for the PC or directly?? The command there mentioned for which patch ?? Sorry for that, thanks in advance 😊 Where is the download link??

I received mine 1 week ago, but unfortunately I’m not happy because I’m surprised how the lag it is. Also no more tools , for example you can’t draw any shapes or straight line , only manual . Don’t know by time I’ll be satisfied or not . But first impression and first week , I’m not happy at all even don’t like to use it . 😕 Sorry for such negative observations, but for me it’s fact .