Hi Metin,

re:
> I'm hoping very passionately that V4 will get full customization options for navigation
> (zoon, pan and orbit fully assignable to custom keyboard keys and mouse buttons,
> and reversable in direction).

The thing that makes this kind of difficult is that there are already numerous ways set up to do these, so it would be kind of complicated to have options for every single method.

For example you can pan with middle mouse button drag, or with Alt+shift+LMB (for compatibility with Maya), or with shift+RMB (for compatibility with Rhino).

Also rotation is already reversible with a checkbox option under Options > View > Rotate/Pan/Zoom options > "Reverse right-click rotate" checkbox.

If you could be more specific about how you wish the navigation would work (like which key combo and mouse button you wish you could use for zoom,pan,and orbit) it would make it more likely I'd be able to do something about it.

The other area that can be problematic about assigning anything to these actions is they could then conflict with actions that do other editing operations like selection or other things in the future.

- Michael