Could this be a problem since it is such a big differance between margin requirements on forex and on indicies.
I mean, forex it is leverage 888 and on indicied it is 100.
But if I request a change of leverage to 200 or even 100, then forex would be 200 (or 100) and indicies still/also 100.

Because if I increase margin slider, it will affect forex trades 8 fold, and that might not be optimal.

Or is the problem that Zorro wants to open smaller contracts then the broker provides?