A Search Engine Within A Document

I split my screen a great deal so I can look at websites and complete my project ideas for my students (or have a gradebook on one side and student work on the other).  Well now Google is making it easier to avoid having to do this.  When you open a document in Google Docs and the go to "tools" and "research," a new screen will open up on the right (see above).  If you run your cursor over the bottom of each link, you will see three choices (preview, insert link and cite).  Now the preview will set up a new column (again look above at the one in the middle) and that column will give you a smaller version of the page including videos.  The "insert link" will, if you drag the cursor over the chosen words), add in the link from the webpage.  Finally the "cite" will put a citation at the bottom of each page.