How do I view a specific content source or switch between files?

To view a specific content source or switch between files, let's break this down.

Let's say you are content sharing.  If you chose to share Your Entire Screen, you do not need to worry about switching between files or anything else.  Whatever you do on your PC is what your participants will see.

If you chose to share using the Application Window option and you decide to show to your participants another application, you will need to click the Share button, then select the Application Window tab and select the application in question.

If you chose to share using the Chrome Tab option and you decide to show to your participants another Chrome Tab, you will need to click the Share button, then select the Chrome Tab and select the Chrome tab in question.