Requirements, test suites and standalone test cases can be added to a build. When a requirement is added to a build, all the linked test cases to that requirement will be added to the build. When a test suite is added to a build, all the grouped test cases in that test suite are added to the build. Therefore, there may be instances where there are duplication of test cases since it may be linked to both a requirement and a test suite.
Note that in a build, there is an option to skip a test case. This may be considered in the instances of duplicated test cases.
Users will need permissions in the test coverage module to access these features.