How to make a poll where every participant can add a topic?

Hi, i just started using Slido and am wondering if it is possible to create a poll where every voter can add an option and vote. 

The idea is that everyone involved can suggest a topic we can discuss later and that all of us can then rank what topic is of the highest priority for each of us.

So in the end we would end up with the topics that are important for most people at the top. 

sort of like reddit, the posts with most votes float up. 

Kind regards,

V