How can I use Animated Strip Time in the NLA Editor? I'm interested in knowing how to use the Animated Strip Time in the NLA Editor. From Alrik's answer to this question, I thought it could be used to do turn a strip into something like slo-mo that's easy to adjust. The only info. I have though on this is from here, that Strip Time is all about determining influence "over what time". 
What I did was made a cube, made a strip where the action is the cube moving diagonally. I played around with 2 keyframes on animated influence, and that worked out fine, but one I checkmarked the Strip Time and added a keyframe at .5, the cube doesn't move at all. I thought .5 would slow down the animation to half speed. 
How can I use the Animated Strip Time option to do, well, whatever it's meant for, if not slowing down animation times?
Came across the same issue trying to use it. Whenever I made a keyframe it would resort back to 0 and wouldn't animate. 

I contacted the developer and it turns out this was a bug. It has now been fixed and it seems to be working fine on the latest daily build, which you can download from here:

https://builder.blender.org/download/


  UPDATE: Currently with the latest release (2.7a), you can only get it
  to work using the Graph Editor.