Keyboard shortcuts not working Rhino 5 (and Matrix8) - searched couldn't find answer

My keyboard shortcuts are not working even when I select options and restore. I have had to recently re-build my laptop, re-install Rhino 5 and Matrix 8 and have lost this functionality. I have searched the forum but nothing has worked so far.

I don’t have grasshopper installed.

Any help greatly received.
Thanks

Hi Lillian - if you have custom aliases or keyboard shortcuts, they are not remembered indefinitely by Rhino - use OptionsExport to export these and other options to a text file that you can use when reinstalling Rhino, via OptionsImport.

-Pascal

Thanks for your help Pascal I will do that.
Lillian