Using whiteboards with image in breakout rooms

[CHBAmeetings]

Hello, 

I am using breakout rooms as part of an online training course. I would like the participants in the breakout rooms to be able to use (edit) a whiteboard that is pre-populated with an image. Each breakout room needs their own whiteboard, but the image is the same. Is there an easy way to do this? 

As a workaround, I have tried to join each breakout room and upload the image myself, but it does not always work and it is time consuming. Is there a fix for this?