If you don't mind using a windows application you can give https://www.stockportfolioorganizer.com a go it does what you need and much more like allowing you to paper trade, divide into different groups, write formulas etc.
Thanks for the reply. I really only use windows for video games at this point. Looks like a cool app though. Have you thought about converting it? Some of these web frameworks have higher level wimp apis now.
Disclaimer: I am the author.