Not through the Trouble shooting. It's an "on" or "off". You can create a shortcut to it on your desktop, and turn it off and then just use it "on demand" manually, but that might allow errors in disk volumes, etc. to exist and destabilize your system.
Instead, since you're really just having that shortcut easily accessible, you might take a look here:
http://www.techfeb.com/2011/07/quick-access-your-favorite-links-and-shortcuts-from-system-tray-using-shortcuts-to-tray/
There's a neat little app to download from there which can make your network resources accessible from the systray (then, you can also probably put all these icons in a separate dock using Object Dock 2+).
This way (if a bit cumbersome and arcane) you won't potentially destabilize your OS.
