now with latest maya 2011 and 2012 this no longer works.
anyone have a fix for this? thanks
Open the Hotkey Editor under "Window > Settings/Preferences > Hotkeys".
Create a new command can call it _SNavigation .
Add the following code:
overrideModifier -press Alt;
Now assign this newly created command and tpye in "s" for the key and make sure the radio button is set to "press".
Now we create a release command. Call the command _SNavigationRelease.
overrideModifier -release Alt;
Now do the same as above again, just this time set the radio button to "release". Now you are done and can use "s" for navigating around in Maya like in XSI.