Hi Alexei -
You're looking for the features available in our latest release! With the new features, you can define tests in a test library, associate them with a release. Organize tests into a test set, then run them with the necessary configuration.
You can define any configuration that you need - OS, Browser, OS/Browser combinations - and associate the test set with the configurations that apply.
First, you'll need to enable the new features in Security:
Security - TurnOnFeaturesThen, take a look at our What's New information for an overview of the new features:
http://smartbear.com/products/development-tools/almcomplete/whats-new/Let us know if you have any questions!