Sharing groups of ideas / structured ideas

I propose to make an option to allow people to vote separately on different items in one idea submission. In other words, I want to make a structured submission with the main idea and several optional sub-ideas (or just several ideas).

For example, I have an idea that Cravers should like soda (item 1). Moreover, I believe they should like green (2) salty (3) soda, but I am not sure the community shares the latter. Therefore, I need to publish all these items in one submission and allow people to vote separately on the items 1, 2 and 3 (they should be visually separated in sections too). Or to allow the people who upvoted the item 1 to vote on the sub-ideas 2 and 3.