It should be possible, but it will never update live as far as I know. Plugins have that ability.

Hi everyone, As I'm starting out with scripting I'd love to hear any feedback on the script below. It seems to work fluently (CS5), including alerts when the wrong items are selected. It's pretty simple and nothing fancy, but I wonder where I could write it cleaner or better or whatever. http://uplo...

You can use add(item, duration) if I'm not mistaken.

Proper documentation can be found here:
Adobe Intro to Scripting
AE CS3 Scripting Guide

Simply select all nulls, hit 'p' and click the stopwatch to remove all position keyframes.

Perfect, thank you Paul.

Hi everyone! I've been learning to script for the last two weeks or so and man, is it addictive :) Though, something is unclear. The code below returns 'undefined is not an object' on the second line of the loop. The Intro to Scripting PDF tells me this error is only returned when the hierarchy isn'...