I would like a way to set up different thresholds where a user can be notified that they are getting close to exceeding their quota limit. Give me the option to allow notifications at 95% and 99% and then every time they have hit their quota limit when they are someone else adds files to something that they own. I would also like to see warnings added for collaborators when they add files to another person's shares that indicate that they have hit a quota limit for the owner of the folder and give them a warning that they need to work with the owner of the folder.