Use the close command to close a stack without user intervention.
Built-in Message handler
close stack "Zoom Window"
close this stack
The stack is any open stack.
The close command closes the stack window immediately, but it does not necessarily remove the stack from memory. A stack that is closed but in memory still takes up space in RAM and its objects are still accessible to scripts.
If the stack's destroyStack property is set to false, or there are other stacks in the same file that are still open, closing the stack does not purge the stack from memory.
If the handler that closes the stack is in the script of the stack (or in the script of an object in the stack) and the stack's destroyStack property is true, the stack window is closed immediately, but the stack is not removed from memory until after the handler completes.