Hi klaudio, so I originally did that Alt key view navigation to be compatible with Maya. I don't remember why I ended up with the up/down movement for zoom instead of left/right motion, maybe Maya behaved that way a long time ago and switched at some point. At any rate I think what I'll do is change the default for v4 to work same as Maya with left-right motions and have an option in moi.ini to switch it back to the old way.

- Michael