Good way to implement secret startup options in a desktop application

I write a Windows application that needs to have some "secret" functionality. For example, the application disables certain parts of the UI if the user is running in a certain environment. But because of corporate security measur…
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How to indicate window focus without being too subtle or too heavy handed?

My application has a window that shows the waveform of an audio sample and the text transcript of that audio:
Sometimes you want to navigate within the audio and sometimes you want to work on the text.
My intent is to allow focus in eithe…