Pushbutton to 4-Speed - Pushbutton Delete Plate?

Durn cool. I'm looking across the river right now at Oregon. I'll definitely check in with them.

All the pictures I've pulled up for the dash of a '64 GT have a slide control to the left of the pushbuttons, the function of which I know not. http://valiant50.co.za/joomla/index.php/members-garages/1964-dodge-dart The few delete plates I've seen offered don't have the opening for the slider. What am I missing here?

Ironically, I haven't got the car in hand as I'm waiting for title to clear. I haven't even been able to walk around it because it's stuffed into a garage located 150 miles away. I'm doing all this gathering of information ahead of the game.

Thanks for your help. GR