tnx, guys..
i did some research on my own. it turned out that i can make my own hotkeys. so i did it. thing that confused me was that in tutorial was written like that marking menu is made in default. it isn't working in my Maya.
about three buttons mouse: i've tried it but with same resault.
i just got mac and i love everything abut it. mouse, too. i'm just trying to get by with original mouse. when i earn some extra money, i'll buy myself power mouse so everything will be shining and working.:attn: