Mike Maclan: When you say that the motor flex only last screw. Do you mean the screw towards the servo or the screw towards the rear of the car?

Chris Draper: By the sheet it has only the end screws. [Both ends]. The two in the center left open.

Mike Maclan: Yeah, the only reason I ask is because the default editable setup sheet shows those holes as black like that too. The rest of the sheet uses red circles for buttons. I think what we are seeing here is just those circles being so small they appear black like they are selected.

Lars Hoppe: Yes the points are fixes in the setup sheet. I mean the screw towards the rear of the car.

Source:

L. Hoppe