Did you uncomment the definition in LCD.h as per my instructions in Post#93? As far as I know the Sainsmart is identical to the DFRobot in relation to resistor values used. You should be able to create a new device in settings and define a linear device and swap between your brake and your rotary table. The menu options are there, take the time to fully explore each menu option. There is no need to change #defines in the code.