Select is the 'Enter' button that on the 7000 is a Check Mark and on the 9500 looks like the symbol on the Enter key on a PC keyboard.

It would have been very nice to have a 5 way keypad with an enter button in the center but neither the 7000 nor the 9500 were designed in this way. The HTM MX-3000 does have this button in the center of the 4-way pad.