I am not entirely clear if it is ok to apply to more than one university ? I have currently submitted two applications to two universities where i have Supervision interest from each institution and the possibility of funding. Is this totally against protocol ?? I cannot find any information regarding this. I would appreciate it if someone could let me know ? Thank you so much.

I have a Masters Degree in Contemporary Theatre Arts from Sheffield Uni (grad 2011). I am living and working in Moscow as a Theatre Arts Teacher. How could I study a PhD from there ? Is it possible?