How to use custom data with packedscene into TileMap?

Godot Version

4.2.2

Question

How to use custom data with packedscene into TileMap?

With atlas tiles it’s very simple, but with packedscene I haven’t found it anywhere.

You can’t, it’s specific to atlas tiles, see here

So I can’t get anything similar?

You can just add data to the scene, you can’t set custom data on individual tiles in the map anyway, just the tile set, so it doesn’t make any difference, unless you need to get it externally, what would you use custom data on a scene tile for?