Temporary edit-access to Figma file without adding editor seats

My team is trying to have more a collaborative wireframing process, where the whole product team (including engineers and product managers) get on a Figma file to wireframe together during a team meeting.

However, I’m unable to grant access without making the entire team “editor” (and paying for a huge amount of extra editor seats). Is there a way of doing this? Perhaps something similar to “Open session for 24 hours” on FigJam?