So, to open an email in another window on Notes:
1. Click on the email (or the application that you want to open).
2. Right click on the tab name
3. Click on "Open in New Window" option...
So simple... But I still prefer Outlook!
This website has guidelines and templates for you to create your Test Case Documents. It was very useful for me to create my test case document.
This page is specific for test Case templates:
http://www.softwaretestinghelp.com/test-case-template-examples/