The way a development lead has created a developer task a testing lead can create testing tasks.
In a testing task we can add the following
The assigned tester can then go to the task and change the status to in progress, work on the task i.e create test cases and then in attachments attach those test cases in excel or word format , in comments explain that all test cases were created and attached and close the task.
If a tester has some confusion he can keep the status to in progress but in comments put something like “Going to talk to my team lead or BA to clear some confusion before creating test cases)
Then a new task can be created to run those tasks by the team lead.