I am setting up a list of topics, where team members can express their interest in the various topics. I also want people with knowledge of a topic to be able to express their willingness to do a presentation on the topic without having to edit the table manually, by simply "voting" as a presenter for a topic. I don't know in advance who may be a presenter for a topic, so cannot pre-enter a list of presenters and need some kind of voter mechanism. This makes me need to have two different votes for each table entry. One as an "interested listener" and the other as a "presenter." Is there a way to do that?