Cubasis-3 and Keyboard Shortcuts

Hi! I just bought Cubasis 3, and it’s really great. But there is a question about the commands of an external computer keyboard: I chose the “Cubase Preset” option at Keyboard Shortcuts, but in both presets the “C” button doesn’t turn on the metronome. And for the future - for even more convenience of working on Cubasis 3 with an external computer keyboard, I would also like to have the Play command on the right of NumPad on its “Enter” key, and Stop on its “0” key. Just like on a regular Cubase. And here’s another thing - Zoom Horizontal on the “G” and “H” keys does not work for me anyway.
Sincerely yours, Dmitry