Trying to clone instances of a deck with Clone + Send To Loc

SUCCESS, it all works now:

A “public” (accessible to players 1 to 8 ) “damage deck dispenser” window that contains:
-1 At-start-stack for each kind of deck I’ll want in the game, each containing pieces in number and variety matching the cards that are present in the game. Each piece in those stacks are completely hidden from view. Their presence act as a “stem cells” if you will. They are not used themselves but will transform into something I want later, using “replace with other”
-A neat property of at-start-stack is that the order of the items is known at module design time and is never random or “shuffled”
-Global Key Commands that appear as buttons in that window, they are used to trigger the spawning

A completely private, hidden from view, unaccessible “Damage Decks” window that contains:
-1 deck for each type of deck that are in the game - they only contain 1 copy for each type of card. For example, say there’s 7 copies of a “Direct Hit!” card, it’ll only have 1 copy of that. These decks act as untouchable source decks.

Then, each player has a private window (viewable to all, but only editable by the owner-player) and contains:
-a few empty deck “trays” for each type of potential decks you might need in a game

When you click on a spawn button in the public damage deck dispenser window, it launches the following events:
-it sends a keyboard shortcut command (CTRL-N) to every counter with a specific property (set to “true”) in the at-start-stack corresponding to the deck you want to be spawned
-the pieces in the at-start-stack receive CTRL-N and it affects them in two ways: 1) A clone trait (also triggered from CTRL-N) in order to make a copy of itself 2) a “replace with other” trait that makes one of the 2 copies of the piece transform into a card; it also sends a new shortcut command to itself, a CTRL-S signal
-The newly transformed piece->card receives the CTRL-S signal and is “sent to location” to map $playerSide$, on board $playerSide$
-The at-start-stack has thus been used to spawn a complete instance of a deck inside your player hand window, while still remaining intact thanks to the cloned copy during this process.
-The source deck in the private window has only acted as a reference, having some of its cards been pointed at with the “Replace with other” trait. None of its cards are ever moved or depleted.
-The spawned cards, if “sent to location” directly at the exact same coordinates of an awaiting empty Deck (in the player window), will be dropped into the deck. If the deck has an auto-shuffling property set, all those cards will be nice, shuffled and ready for play right away.