As long as you keep EUOX.exe open, the global namespace variables will remain in memory for any instance of a script tab that you run. Closing a script tab, or restarting a script in a tab will reset the local namespace variables. The only way to have either local or global namespace variables persist is to save them to an external medium. The NGFS is a good example of how to do this quickly. It basically takes all the registered variables and stores them in persistent variables in your registry.