This would be super useful! I think a lot of us use the same card across multiple tabs or dashboards. Currently, if you want style changes, or the integration is modified you would have to do maintenance on all the locations you use the card.
Example:
A weather card that you want displayed on your mobile view, wall-mounted tablets, etc.
Here’s how it could work:
When you have a card copied to your clipboard and paste it somewhere, you’d get two options:
Paste normally – this creates a standalone card.
Paste as a reference – this links the card as a reference, with a simple note saying that changes made to it will update all linked versions.
Or if you want to edit the card, it could just navigate you straight to the source card to make the changes.