Adding items to the collection: You can add both blocks and entire tiles to existing collections or create new ones right away.
Creating cards within the collection: You can create cards and detail them directly in the collection without leaving its boundaries.
Note: Items added to the collection from other pages are synchronized with each other, but if you delete a card from the collection, the source item will remain undeleted. However, if you delete the source item itself, the card in the collection will be automatically removed.