You have the option to create pools for course-associated On-the-Job Training tasks. This option is only available for course-connected On the Job Trainings as pools are course-related features.
To learn how to create a course-connected On-the-Job Training visit Creating On-the-Job Training
You can create OJT pools to use existing tasks in other OJTs. The pool belongs to its owner and can contain tasks that they created within any academy. Non-admin users can only view and add questions from their own pools or admin/training manager pools. They cannot see other users' pools. However, admins of the academy can use these groups of tasks in order to create new OJTs.
Create an OJT Pool
While creating a new task for a course-connected On-the-Job Training select Add to pool (at the bottom right) and create a new pool or add the task to an existing pool.
If you want to add multiple questions to a pool at once, just click on the check boxes next to the desired tasks and select Add to Pool.
The next time that you will create a new On The Job Training step, you will be able to add an existing task to your step. You will also have the option to edit the task you'll add, without affecting the task included in your pool.