To access Suites view just go to Project view. You will find Suites option on the left.
Click the menu item and create your Suite - test cases group.
By default there is one suite "All tests", where you will find all tests you created in a project.
You can create your suites from Suites view:
Create new suite button
Choose test cases which you want to include in a suite
Choose options for a suite
Go back to Suites view
Now you can run whole suite (e.g. in parallel in cloud)