Is it possible to add user-defined data to layers, in the same way that you might add a custom attribute to a node in Maya? For example, for me to add a new string property to a layer that I would access with app.activeDocument.layers[0].myProperty?

Adding custom properties or metadata to Layers?

tomzag February 22, 2023, 8:37am 8

Take a look on the following threads:

Topic		Replies	Views
How to store a selected layer in a variable or an object that could be used later to execute actions on the layer Photoshop uxp	4	333	February 26, 2023
Feature parity - Plugin data on layer nodes in PS UXP Plugin API feature-request	5	964	April 23, 2022
PSD Document, consistent UID? UXP Plugin API	6	283	August 4, 2021
Best way to store document/layer specific data Photoshop	2	589	June 2, 2022
Photoshop UXP plugin + XMPMetadata Photoshop	1	1860	November 4, 2020