Hi,
Just wanted to add to what others have said and make sure its clear, I think you're trying to use a Genie Space to create your dashboard. But Genie code is probably a better tool here. If you have visuals created in a Genie space that you would like on a dashboard you can always screenshot them and give them to Genie Code to create on a dashboard.
Genie code is accessible from the litte lamp icon in the top right -

You want to make sure the agent is selected in the bottom right. If it's not it may not be availble in your region yet. Think of Genie Code as your assistant to build things in databricks.
Genie spaces are the menu item down the side and are there as a text to SQL engine. Ask questions of your data in Natural language.
I hope this helps.
Thanks,
Emma