Installation:
Copy the script into your scripts folder. Open maya and open the script editor and type in:
source tangentSwitcher.mel; tanSwitcher();
Now select that text and go to file -> save script to shelf. Name it and click it and you’re good to go!
Character Set Help:
Click your shelf button and a window will pop up. Your available character sets will be displayed for you. Select which ones you wish to modify. If you want to use the simple tangent modifier, select whether you want to switch them to stepped or spline and that’s that. If you want to use the advanced tangent modifier, select your in tangent and out tangent and click change tangents. This will only change the keys that are currently displayed in your timeline.
Non-Character Set Help:
Click your shelf button and a window will pop up. Currently there is no auto display option for selectable objects, however it will be implemented in future versions. So for now select the objects in your scene that are animated that you wish to modify. If you want to use the simple tangent modifier, select whether you want to switch them to stepped or spline and that’s that. If you want to use the advanced tangent modifier, select your in tangent and out tangent and click change tangents. This will only change the keys that are currently displayed in your timeline.