Request Please

This is a great online project management tool. I prefer Zoho - but I have to use a different program for now and will need to move my items because I can't see how to make items 'private' within the company so that clients who have access can not see certain things. Also, I need a way for the program to automatically send (when selected) an email to people I choose when I upload a file so that I do not have to do that via email etc. That would be wonderful!