Hello.
Some simulators give the RPM values expressed in % of the range. So you can configure the shift lights using a % instead of absolute values.
If you want to know what simulators support that, you have to check this file:
http://www.symprojects.com/go/simdataOtherwise you have to make different configuration for different cars.
When you have created a configuration you can export it and save it on the desktop (or where you prefer). then you import an existing configuration before you start driving the car.
it's not ideal but loading an existing configuration takes few seconds.
Configuring rev lights with the Pro-Race can be a quick operation if you use the configuration wizard, where you set the RPM value for the first LED and the RPM value for the last LED.
The values for the intermediate LEDs are interpolated.
Please let me know if you have more question.
Cristiano