But my broker (http://open-broker.ru - one of the major in Russia) use MT5 and for me only one chance to try Zorro platform in action in the Russia Stock Market is bridge between MT5 and Zorro. So, I have some C/C++ programming background and ask your team to give me the chance upgrade source code of the bridge from MT4 to MT5 and test it. As I understood the difference between MT4 and MT5 architecture not significant and best and fastest way is to adopt MT4 bridge code, then write it from a scratch.