How to divide layer into tiles and preserve position for use INSIDE photoshop (not to export tiles)

Hello all! I have a gradient layer which I'd like to divide into individual tiles as the grid in my screenshot shows. I would essentially like to divide these tiles and maintain their position in the project so I can selectively use them over a photo inside photoshop. I thought the slice tool would work for this but I could only find info about using the slice tool for exporting these tiles for the web. I want to essentially create individual layers for each square tile so I can selectively use the tiles of my liking on top of a photo. Does anyone know how I can achieve this here? Thank you so much for reading this!