I did some more checking and tweaking, and found that MultiLaunchBox does actually work still on OS 10.9.5 and WoW.
There is a new setting in the System Preferences>Security & Privacy under the Privacy Tab.
You need to check the box to "allow the app to control your computer."
I thought I should post for other Mac users, as this has been VERY frustrating for me.
Hopefully this helps others.

Dave