OS X :: Add Keyboard Shortcut For Menu Bar App?

I use Macbiff to check my email. I guess you'd say it's a background app; it has no dock icon or cmd-tab icon; it resides solely in the menu bar. To check email, I have to click its menu bar icon and select Check Now from the drop down menu. I have created a keyboard shortcut for "Check Now", but I can't figure out a way to give the app focus in order to use the shorcut, aside from clicking the icon, which obviously defeats the purpose. FN-ctrl-F8 gets me to the menu bar, but not to Macbiff...this only works for OS based menu bar items, not 3rd party apps. Aside from a 3rd party keyboard app, is there a way to do what I'm trying to do? 3rd party apps don't see Macbiff as a running application anyhow.