Olá LuisP e seja bem vindo!
Yes, there are settings available in the GroundControl software on the Settings panel (or is it Advanced Settings?) for the number of sprocket teeth, chain pitch and pulses per revolution for the motor.
The Wiki has some good info about this type of gearmotor here. There has been much discussion about the gears themselves here.
@stuartri posted some good pictures of ‘counting the teeth’ here.
Finally, if you do decide to ‘count the teeth’ on one of your motors, @mcmiley has a good word of advice here - “A word of advice to anyone taking one apart, make sure the front plate of the box comes out of the bottom of the box, otherwise you’ll end up with a lap full of cogs and silicon grease.”
Adding information to the project about making other motor gearboxes work will help others in the future, let us know what you find and how it is working for you. 