I\'m an Emacs user looking into Sublime Text 2. I\'ve remapped the default Emacs key bindings and have become accustomed to moving about using Alt+i, Alt+k, Alt+j, Alt+l for up,
If you use Autohotkey, you can try to use #IfWinActive which will only apply hotkeys if a certain windows is active. Then your code would look something like this
#IfWinActive, Emacs ; the name of the window
~LAlt::return ;this enables the LAlt + hotkey action but disables LAlt
LAlt & space::tooltip,do stuff
...
#IfWinActive ;end