I need a way to control the timing of img seq textures in combined new usd file

Now, it seems to be impossible to control the timing of img seq textures playback:

This is not effective use of GPU. I wish there could be a simple way to control the timing of the img seq textures, like the one with sequencer that I show here:

But as you see from the video, this method is not working when I combine the usd file to new usd.

Pekka Varis

Thanks for letting us know.