Use case or problem
As we all know, canvas support nesting like notes, so we can extract a complete block from a canvas into a newcanvas and nest it in the original canvas, which is more beneficial when the canvas is very large. But now this process can only be done manually, and cannot be done with shortcut commands like notes.
Proposed solution
Provide a shortcut function similar to file splitting, which extracts the selected cards to another new canvas file. And use the file name of the new canvas file as its thumbnail display in the current canvas (the thumbnail of the canvas still shows), just like the file card in canvas.