Animated Gif simultaneously in two different location of large background

[Ofnuts]

With my interleave-layers script:

• For each animation:
  • Load the zoo image
    
  • File>Open as layers and load the animation
    
  • Chain-Link all the layers of the animation (if you don't know what the layer "chain-link" is, see here).
    
  • Move one of these layers where you want the animation to be, this will move the other layers when you confirm the move (due to the link).
    
  • Resize all these layers to the zoo image size (which will add transparency as padding). Either use Layer>Layer to image size on all layers, or, quicker:
    • Image>Canvas size, and add one pixel in X, and select "Resize all layers"
      
    • Image>Canvas size, set back to initial size, and select "Resize all layers"
      
  • Hide the zoo layer (yes, in both images)
    
• In first image: Image>Interleave layers>Interleave single layer (sprite mode), select the zoo layer, and leave other options to the default. This should create a new image where copies of the zoo image have a merged frame of the animation. If you play this you should have one animation working.
  
• In that new created image: Image>Interleave layers>Interleave stacks of layers, select the image with the second animation layers, and leave other options to the default. This should create a new image where copies of the zoo image have a merged frame from each animation.
  

Notes:

For interleave-layers:

• the stack of layers are the visible layers, so make sure the zoo frame is no visible otherwise it will also be taken as an animation frame
  
• all layers should have exactly the same size (which is the canvas size)
  
• when merging the stacks, the stacks should have the same number of layers (in other words, the same number of visible layers in each image)