Is it possible to discuss a video clip with my team in the Collaborate tab?

Is it possible to discuss a video clip with my team in the Collaborate tab?

Yes, you can! 
Here's how you can discuss a video attachment with your team:
  1. Head over to the Published Posts, Scheduled Posts, or the Drafts section under the Posts tab.
  2. Click on the ellipsis button at the right hand side of your post.
  3. Select the 'Discuss' option to create a discussion in the Collaborate tab with your team.
You can not attach a video file directly from your device to the Collaborate tab when you create a discussion with your team.