How can i add a prevalent layer to an animated gif like in photohop?

[Someone1]

(04-12-2021, 07:23 PM)Ofnuts Wrote: You have to add the layer to all frames of the animation. There are scripts for this such as my own ofn-interleave-layers.

I see, i installed your plug-in (i can see a "layer box to selection" on the layer menu), might i ask how to use it to do what i want?

I am on windows, by the way.

Obviously add a new layer with a rectangle and then choose "layer box to selection" is not enough (or at least it doesn't work for me).

Thanks for the reply and thanks in advancement!