Oh, so .fac files are generated while training, ok, understood!
Regarding Capital variable, you're right, I jumped directly trying to change it, my bad! I'll study workshop6 and then lets see. As a side note, I'm an experienced C programmer, but a beginner in algorithmic trading. Sometimes I think that I know more than I really know and I try to walk over importante steps... This is a lesson to learn for me (again); I have to read everything before ask!
Thanks for your help and for the prompt response