space-permitting, also plan to include analog joystick on this panel to play Tron, and most other analog joystick games.
Tron doesn't use an analog stick.
It's a modified 4-way top-fire, that will barely hit the diagonals.
The restrictor on it keeps it from acting as a TRUE 8-way, which prevents zig-zagging in the lightcycle stage.
With the exception of a 49-way, with a GGG adapter, Tron will not play well with any other single stick.
You can program a 4-way, and an 8-way to control the game simultaneously however.
That will let you pick which stick to use on which stage, allowing 4-way only in the lightcycles, and 8-way in the other stages.