
If you're in EBSCO ebooks:
You can add notes associated with specific pages, but not specific passages.
Add Notes: Look on the left side of the page for the My Notes option

Click New Note to create a new note

You will need to sign in to an EBSCO account in order to save your notes for later.

You can either link your Google account to EBSCO to sign in, or create a new account.
Video demo: