Help with creating an animation from right to left

[Tas_mania]

Some handly scripts for doing Gimp animations are 'rename layers' and 'reverse/mirror layers'. Rename layers doesn't sound like much but you can set the timing of your animation. The default looks like this:
Frame %03d (41ms)(combine)
I mostly change (combine) to (replace). When you play back your animation with Gimp's Animation > Playback you will see what replace does. It throws the previous frame and shows the new one

I still haven't figured out if flip layers horizontally is the same as reverse layers. I should experiment and find out.