2 questions: how to make endnote (the licensed) auto updated with online, every 30 seconds (e.g.)?

hello,

I am using EN 20 Mac and 365 0ffice.

  1. how to make endnote (the licensed) auto updated with online, every 30 seconds (e.g.)?
    may I control it?
    every time I add reference, I do it manually.

  2. have I to add references manually while press the citations, it automaticly add it as Journal article.

thanks