Query across Log Analytics workspaces in Resource-Context mode - "Unknown function: 'workspace'"

Question

Hi,

As detailed in Query data across Log Analytics workspaces there are primarily two ways of performing cross-workspace queries; "Explicitly by specifying the workspace" or "Implicitly by using resource-context queries. "

Is it possible to specify a workspace in resource-context queries? To me it seems this is only possible from within a Log Analytics workspace.

My resource-context queries are getting warnings because they query 8+ workspaces across multiple regions, so I would like to select only one workspace. Ref Optimize log queries in Azure Monitor.

I suppose this is partly due to the customer I'm working with is sending logs to multiple workspaces for some reason, but still.

Example queries im testing:

https://learn.microsoft.com/en-us/azure/azure-monitor/logs/cross-workspace-query#query-across-log-analytics-workspaces-using-workspace

Sample Query inside Log Analytics - Works

Sample Query in resource-context - Does not work

Here im viewing logs in a resource group as an example, but the result is the same for all resource types.