The Test Ribbon in Test Studio allows you to trigger a quick test execution. Along with that it provides quick access to some useful project settings.
If the application under test is mainly used in one browser, or there is a requirement to test in specific browser, it would be waste of time to choose the executing browser for each test run. Therefore Test Studio allows you to set one of the supported browser as a preferred one for the current project - that way this browser will be triggered for each recording session and quick run of the test. This setting is global for the current project and can be modified in the Project Settings.
The Test Ribbon provides you quick access to choose a default browser. Under the Preferred browser section you can access a dropdown to set your preferred browser for this project. The list contains all installed browsers or the option to select the OS default set browser. Leaving the dropdown option _'Ask me every time' will allow you to choose the browser by each recording session or quick execution.
The browser calibration is a required set of settings, which makes the browser compatible for recording and executing automated tests with Test Studio. Test Studio provides the option to automatically apply the necessary settings for the installed browsers in the Project Settings.
The Test Ribbon in Test Studio provides you quick access to this built-in tool for automatic browser calibration.