Can I program locomotives with Engine Driver and the CSB1?

Yes, Engine Driver can support programming features with DCC-EX, especially when using the DCC-EX Native protocol.

DCC-EX documentation says Engine Driver can read and write DCC addresses and CVs on the programming track, and write CVs on the main track when using Native protocol features.

Imported from: DCC-EX CSB1 and Engine Driver FAQs