Toggle prod/all code in search/navigation results

For a given method there might be hundreds of references in test code and only one or a few in production code. I would like to quickly hide the results from search or navigation in test code and only see the production code references. 

This can be done via exclusion of certain paths in the Search options, but this approach is too cumbersome and slow. I need a toggle button or keyboard shortcut that toggles the results in test code on and off. Is this possible? If not, I hope this feature will be introduced in the future. It would be straight forward to implement based on which projects refer test packages or simply project type.