The ‘test library’ contains sets of questions that have been set for students in the past and saved so that they are available to be set by any teacher within the school at any point in the future.
They are designed to save teachers time when setting homework and to allow teachers to share their curated tests.
They appear as an option when teachers select the ‘set pre-made tests’ option when setting homework.
The following link will take you to a guide on how to add to the test library.