I have an external script in \NCalcScripts folder which are ETS Blinkers to TM1638 leds and works on my laptop. I've copy it to new PC but I cannot see them on the list in LEDs Built in Property list. Did I missed sth?That's really strange, maybe you installed it somewhere else ? Really absolutely all the settings are in these files. Maybe did you copy it when simhub was running ? In this case it will overwrite everything with the settings loaded in memory.