You can use your mouse to click the Emulator tab keypad directly, or you can use the following equivalent keyboard shortcuts:
The arrow keys on the keyboard (left, right, up, down) map to the corresponding navigation keys on the Emulator tab navigation keypad.
The Enter, or Return, key corresponds to the Emulator tab select key.
The Page Up and Page Down keys correspond to the Emulator tab left and right soft keys, respectively.
The number keys on your keyboard map to the corresponding number keys on the Emulator tab keypad.