I\'m not asking for the option to automatically follow the current file in the solution explorer. This has been answered in this question a
In Visual Studio 2015, 2017 and 2019 you can press Ctrl + [ and then s.
This will highlight the file currently being edited in Solution Explorer.
This can be configured via the following keyboard command: SolutionExplorer.SyncWithActiveDocument
To reconfigure, navigate to Tools -> Options -> Environment -> Keyboard