Thanks for the context. You can see analytics data from the cloud via the dashboard blades on the left
Sample view of my own dashboard showing usage data by APIs
Sample view of my own dashboard showing usage data by Keys
If you are unable to see any data in either of the blades, then it could mean that you have not tagged / sharded your APIs. You can find the appropriate tags in your edge gateway as shown below:
Finally, make an API call using the ingress / gateway / edge endpoint rather than the dashboard endpoint. And you should be able to now see your analytics data.
I hope this helps.