Is there an layer auto fit solution?

[taiterd]

Sorry But I posted this in troubleshooting before I realized there was an "actions" heading.

Hello Gurus,

I am trying to make actions that would overlay textures to images. I thought there would be an easy solution to making the overlay image the same size as the background image BUT I cant find any advice from doing a search online. Does anyone have suggestions. I know it can be done because of some pallets that I have purchased can. But I would like to create my own.

Thnx