I actually read your question on another forum but I'll post the solution here.
Create your shortcut as usual using EDIT > KEYBOARD SHORTCUTS
AFTER creating your shortcut RE-SAVE your workspace...do this via WINDOW > WORKSPACE > NEW WORKSPACE and type the EXACT same name of the workspace you are using.
You'll get a warning saying that the workspace already exists and do you want to over-write it....you do.
(Make sure the workspace is set to how you want it)
Also, and most importantly, make sure to check the KEYBOARD SHORTCUTS checkbox when prompted.
Regards.
MrToM.