Having the card thumbnail as a field to be able to use it in multiple areas such as "Sheet" , Kanban, Roadmap, card list"

Right now i can only have a visible thumbnail if i manually upload an image and set it to "show on card".

I need this to be a bit more smoother process. I don't want to spend time importing and clicking an image manually on 1000 of cards. I need the system to do it for me.

So Ideally doing a batch import with 100s of cards at the same time and during import it can attach a thumbnail automatically all the cards correctly.

The simples version could be like an icon or so. similar to how Notion does it.