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From the Design menu, click on “Test Suite”.
Click on Add Test Suite button.
Enter the Test Suite title and click on Add Tests button to add test cases to the newly created suite.
Select test cases from the tree in the right pane and they’ll get added to the grid in the center. Click on “Save” and your Test Suite is ready for execution.
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Click on “Execute” and then on “Execute Automated Test”.
In the resulting screen, select a Test Suite from the left pane. Test cases in the suite will be populated in the grid in the center pane.
Enter a name for the current Run, the execution tag used in the test case/component (if any), select the browser instance (if required), execution machine, select browsers to execute on and click on “Run All” or "Run Selected" button accordingly.
New Results windows will popup that shows live execution results. Almost simultaneously, selected Browsers will open and start executing tests. 
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After execution, all new browser windows will close automatically.
Final Result window will resemble the image below. It shows the outcome of executed tests on each browser with Elapsed Time for each test. 
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To view detailed step level information and screenshots, click on the “Test Steps Result” tab. 
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Screenshot for individual step can be viewed by clicking on “View” the camera icon against a step in the Screenshot column. 
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