Default About samsung scrapbook

Hello, I have some questions about scrapbook.

- I circled a part of a website but the app seems to have saved the entire page because from scrapbook, I can scroll down to see the remaining of the page. How can I save only a specific part?

- On the top right, there is a symbol that links to the specific url. I clicked on it and a browser was open to take me to get link. How do I get back to scrapbook? Back button does not work.

- When using scrapbook to store a youtube video, is the actual video stored in the device or just a link to it?