Run Mode controls whether tests in a group execute at the same time or one after another. By default, groups run concurrently.
All tests start simultaneously. Each test runs independently with no ordering guarantee. Best for groups where tests do not share state or depend on each other.
Tests run one at a time, in the order shown in the group. The next test starts only after the previous one finishes. Best when tests share state, depend on each other, or target a shared environment that cannot handle parallel sessions.
Groups in Sequential mode get a small “Sequential” badge next to the group name in the Tests tab. Concurrent is the default and shows no badge.

When a group is set to Sequential, a drag handle appears next to each test. Drag tests to reorder them. Changes save instantly.