Note that the script of the "hypertext" button includes the command:
go to Montreal Hypertext
This is used to mark the location for the go to command. If you wish to search in a separate stack, replace "Montreal Hypertext" in this command by the name of the stack you wish to search. If you wish to both remain in this stack and use a different name for the stack, you can either change the name or delete the entire go to command.
"If" commands similar to those discussed in modifications for field searching can be used to set up a heirarchy of stacks to be searched