I have one grievance with the animated texture editor. You can't import image strips. it would be nice if one could do this because if you are using an animated vanilla texture as your base. if you want to use the vanilla texture you have to cut up the strip and put the images in one by one. this takes a long time.
now I know that one would need a Jason file or something to determine the timing. this can be overlooked by putting the strip into the Animated Texture creator then the user can determine the speed of the animation.