Changing the current animation frame from a script?

[#1]

I've been messing around making scripts for Photoshop with JavaScript and I couldn't find a way to work with animation frames in the official documentation.

I'm working on a script that would combine all visible layers on a single frame of animation and then move to the next frame and repeat.

I found the function that merges all visible layers in the documentation, but nothing on controlling frames of animation. Is there a way to change the current frame with code?

[#2]

I've been messing around making scripts for Photoshop with JavaScript and I couldn't find a way to work with animation frames in the official documentation.

I'm working on a script that would combine all visible layers on a single frame of animation and then move to the next frame and repeat.

I found the function that merges all visible layers in the documentation, but nothing on controlling frames of animation. Is there a way to change the current frame with code?