After all of the scripts are ready, we can sort out all of them in current project, and create new test item using them, and assign the test items in different groups.
There are 5 tabs: Test Items, Variables, Issue-Tracking Templates, Logs, Properties
1. Test Items
2. Variables
Use the project variables(persistent), we can easily to modify the url from http://localhost to automation test url even production url.
Note: It is fine to use variables. It will make test script qualify different envs.