It would be nice to be able to get help (about an option) mid-command.
At the moment, I can do a 'help controller' to see the options available for the controller command, but there's no way to get help once I've started type.
If I could, say type:
roo> controller class --name foo.web.FooController --preferredMapping <tab> and have roo explain what --preferredMapping is, that would be nice. (It just shell beeps atm)