How can I add a URL to a specific Trello card? not create a new card?

[Jordi]

I love the card creator.  But I am doing research for an article.  I have a URL for a resource.  I want to add it to a specific card.  NOT create a new card.

Is there an extension or plug-in to do that?

[Katrin Anger]

@Jordi 

Question: is this a unique request, meaning there is only one single card that gets added attachment links to?

Or, do you have a setup of several cards where you would like to be able to attach links to?

[Jordi]

It is for a unique card. I am researching a topic. I want to add urls of resources to thatthat card instead of making like ten new cards. If be on with merging cards once theythey are all in the board, too. 

[Katrin Anger]

@Jordi 

Okay, here I have a command draft that could do the job:

As a trigger, I choose a blue label (but you can use almost any trigger you want).

So, when an attachment or a URL is added to a card with a blue label (anywhere on the board), the attachment link is added to the unique card (in this example: URL Library).

Can you give it a try and test if it works for you? - Let me know!