Enable hotkeys SAP 7.20

[LudaFil]

Hello SAP fans,

I have a question for you :

I'm trying to enable/activate the hotkeys for the SAP GUI 7.20 version.
[I find hotkeys, like ctrl+N for a new session, very useful]

First, I followed the path suggested by google search :
A colorful button "Customize Local Layout" > Options.
But there was nowhere I could find the right option to enable hotkeys.
I suppose it's a matter of GUI versions...

Does anyone have an idea how to access the right zone in SAP 7.20 ?
Thanks a lot for your help,

ludafil