You can create the environment variables as per your project requirements and use them in the test cases and tasks.
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- Log on to Qualitia Automation Studio.
- On the Setting menu, click Environment Variable.
The Environment Variable screen appears. - On the Environment Variable screen, click the Add button.
- Double-click in the Name field and enter the desired variable name.
For example; URL. Double-click in the Value field and enter the desired value.
For example; http://www.google.com/.Expand title View Image 
- Click OK.
Once the environment variable is created successfully, you can now use this variable as per your requirements in Test Cases and Tasks as displayed in the figure below.
When using Environment Variables in Test Cases or Tasks, make sure you enter the variable name inside braces “{}”.Expand title View Image 
Info Qualitia Automation Studio does not support creating nested variables.