Margin Note Pro 2 has more features than Margin note 3 on Macbook Pro

So, Margin Note 2 Pro > seems to have more features (using Macbook Pro) then Margin Note 3. I have been struggling with Margon Note 3, only to open Margin Note 2 Pro (back up) to find all the features exist within this version. Can anybody assist?

Specifically, in margin note 3, I cant edit the PDF no

Hello, is it convenient to take screenshots or record a video explaining this?