Hello @glazem 

thank you for the question. In case you already have some Slido created via our website you can add existing polls into your presentation as shown in this quick video: https://app.vidcast.io/share/9aa58506-e7bd-46c2-997b-2706745a2043

It should simply let you add the existing polls into your new presentation. You can also add new interactions directly via our powerpoint integration.

Please let me know if I can help with any other questions