export/import button doesn't appear un dude client

Hi, I need to migrate my legacy dude configuration to a new one, but when I connect with dude client, import/export button doesn’t appear beside “settings” button. Do you now why? I have two client versions 6.34.4 and 6.48.6, how can I export de configuration?? Regards.
dude captura.JPG

There are no buttons of that type in version 6.x, as I remember…

So, how can i do de export for migrate the current server?

start dude on new, stop dude on new
stop dude on old
copy dude.db from old to new, replacing the file, start the new