You can save items in OneSearch by signing into to your OneSearch account
Click on ‘Sign In’ on the top-right corner of the search results screen, and login with your CougarNet ID and password: 
To save items, click on the bookmark button to the left of the title of the search result you would like to save:
To view saved items, click on ‘e-Shelf’ at the top-right corner of the search results screen:
If you have not signed in to your OneSearch account, the e-Shelf will only TEMPORARILY store your items, and it will be cleared once you leave OneSearch.
Make sure you sign in to permanently store your items in the e-shelf.