Just an idea, alongside the Aliases, Popups, Remote, Users, and Variables tab, add a new Hash Tables tab for a GUI interface to editing hash tables.
The view menu would drop down (like the other sections) to list all the tables loaded, and you can save them (or load them) from disk using this tab.
Would be very handy I'd like to think - save you having to remember what hash files are loaded, or whats inside of them.