I'd like also to create demand for another GDS feature which is available from EF but requires certain technical work:

- booking classes for secondary airlines (in case the fare allows to have other airlines segments you will no longer have to guess or use ITA to check which booking class it books to say on LH and how many miles you will get).

This is called RBD Chart2. Users please let EF know if you need this feature and help me to get it too!