How to push updates to End users in 3dspace through banners or any other tools.

How to push updates to End users in 3DSpace through banners or any other tools.
For Instance, If there is a downtime for maintenance then I would like to show the message saying 3dspace won't be available in this specific timeframe.

I just want to catch the user's eye there to go and click it?

Is it possible? any configuration available in 3d space? Any creative ideas?

Edu ​​​​​​​3DEXPERIENCE ​​​​​​​