I couldn't find this functionality in Blender, so I made this addon for the Graph Editor to solve it. It filters X, Y, Z for Translations, Euler Rotations and Scales.
Note that this doesn't work for Quaternion rotations.
Added buttons to hide and unhide curves instead of default keymaps, made them for users who are not familiar with blender keymaps. You can use Shift+LMB to make multiple selections and Ctrl+LMB to subtract multiple selections.
Have fun :)
Fixes bad naming and website
-Previous release
Added Scale buttons
Added Ctrl+key to subtract selection
This extension does not require special permissions.
This is what I need... Thanks, man.