​@NicoleM for a multiple choice poll, it is possible to change the poll question while the poll is active or “running.” You can also edit the answer options that you originally set up. However, you won’t be able to add an additional answer option without stopping the poll first.

In terms of the direct link to the poll, that URL will not change if you make edits to the poll question or poll answer options. 

In terms of the permanent joining link for your slido or QR code for the slido, those will remain the same too even if you make changes to polls within the slido. Let me know if you have any other questions!