close Parallels on host shutdown user scenario

The option to "Close Window" in Parallels configuration options when the host is shutdown needs the ability to Quit Parallels *the program* as well. (Maybe by adding another check box that says "Quit Parallels after host stops and no other hosts running" or some such)

Here is the user scenario I keep running into:

Set up a new Mac for longtime or novice Windows users. There is always a few apps they can't or won't let go. They will never user more than one host OS (and I'd wager the majority of Parallels users don't either)

With coherence and using Windows applications you can make it look and feel just like you are using another OSX app by placing link to the Windows app on the dock/finder/etc. (albeit the first time you use it Windows has to load so it takes a long time... I've found users get that after explaining once)

If the user never shuts down the host OS - the experience is fine.

If they do - restarting the application becomes more (or too) complicated for users I am describing. They have to click the Parallels dock icon, or run it if it isn't in the dock - select and run the host OS they want - then again run the application they want.

Pretty please add the ability to close parallels the APP when all hosts are not running.