lyx shortcuts in mac os - can't make them work

[Paola Manzini]

Hi All,

I hope somebody can help - I have searched the message board, but there 
is nothing recent that I could find to solve my problem.

I just moved from Windows to Mac (Macbook pro), on OS Maverick, using 
Lyx 2.1.0 (April 2014 release). I cannot make most of the shortcuts 
work. I understand that e.g. the shortcut for \gamma, "^ M G G" , stands 
for ctlr-m-m-g, but if I press this key combination nothing happens. 
Using either the command or option keys instead of ctrl also makes no 
difference (or produces different results).

I read somewhere that the ctrl key is not recognised in Lyx, so I 
changed the shortcuts in lyx\preferences\Editing\shortcuts, but again 
nothing happens (for the specific example to "Command M G G"). I have 
checked and the system is using the mac.bind.

Can anyone suggest a (simple please!) solution? I am a total beginner 
with Mac OS, so I am not at all confindent with meddling with 
configuration files, and would love any solution implementable from 
inside the Lyx gui.

Thanks!
paola