Hi John,
If the above does not work, you might try this;
#1- go to Apple>Preferences>Keyboard Shortcuts and un-check F9 thru F12 (I have had FCP shortcuts default to OS-X Keyboard Shortcut Defaults)
#2- With FCP OFF (Quit) Go to Dock>Finder>User>Library>Preferences>com.apple.FinalCutPro.Plist and TRASH the Plist but do not empty trash.
Open FCP and go to #3.
#3- With FCP open In Tool Bar go to Tools>Keyboard Layout>Customize.. Then set things your way.
Be advised, I am new to Editing and may be wrong,The above works for me.
Regards, John