Have you ever used a car park flip chart in your workshop?
If no; it's essentially a place to park topics or conversations that you can't have at your workshop but need to be captured for a later date. Adding them to a car park allows people to see they've been heard. You can come back to it later in the session if relevant or you can agree how these things will be picked up outside of the session.
You can absolutely just create your own flip chart for such occasions, but I've created a poster and slide that you can use!