Extra 'Thumb' on Brainstorm

I love Brainstorm. The thing is, it prduces 5 suggestions and won't do more until you either thumbs-up or thumbs-down a suggestion. I know you use thumbs-down as a hint that something's not right with the way the AI's working. Most of the time I just want to get rid of suggestions so I can get more new ones. Perhaps it would be better to have an extra thumb? One to say, 'Move on'. Another to say, 'Something's wrong'.