Track who created/edited each Whiteboard shape

What is the challenge?

Cannot tell who created/modified each shape on whiteboards

What is the impact?

When lots of people brainstorm on a whiteboard, it is hard to know who to follow up with about content on there.

Describe your idea

Would be valuable to be able to see who created each shape - especially for notes. Wouldn't necessarily need to be visible on the board - having it in some sort of right click menu item would be fine.