I am using a macbook pro and a logitech g7 . In osx the trck camera hotkey ( alt/option + middle mouse button) does not work properly and instead zooms in/out when i try to push the wheel down. is there some way I can edit the hotkeys so i can use a different button to pan the camer. Also, while maniplating the camera controls to get a better view of certain areas the model will totaly dissapear from the viewport. I click on he litle house button bt nothing happens and i just have a big grey box. is there some way I can see the model in the viewport again? This is probably a simple fix and I will feel stupid later but i have tried for an hour to fix this.