Dynamic NFTs for Edition using ERC721

Hello, i have planning to photograpy edition using ERC721 and planning to update the image every week for 1 year, the question is :

  1. If i want to change the meta data image on NFT edition using ERC721, will it automaticaly change every token that exiting? or i need to change it one by one?

  2. Can i keep changing the picture metadata every week using these feature Dynamic NFTs - Manifold Docs