Create a "master card" to control multiple cards

[Tomas Dreves]

Hi everyone, i have a board with a butler button that creates a new card with the all the cards within a list (it "merges" the cards, lets call it the Master card [MC]). This card is created in a new board. What i want to know if it is possible to sync this MC with the ones on the original list, in order to move this N number of cards (doing -> done) when i move the MC in his own board from doing to done?

[Iain Dooley]

@Tomas Dreves how are they linked together? There's no merge feature in Trello, do you just have them linked by attaching the cards to each other or are you collecting multiple cards into a linked checklist on a master card?