#10 To create casual distribution of simple domains

[Nikolay]

Unfortunately instructions on the package DISCUS is too complicated for me.
I want you to tell me how to create a random distribution in the bcc lattice of iron simple domain consisting of pairs of bcc cells with silicon atoms.
I need that they are uniformly and randomly fill the host lattice, and were oriented with equal probability along the three axes <100>.
I read the entire text on the domains, but have not found instructions on how to fill the casual and rotations.