You have the opportunity to edit a pre- or mid-test and also an automatically generated post-test prior to it being assigned to students.
Use the Search filters to select your question criteria. Note you can make your selection from a Textbook or Curriculum/Syllabus view.
Add a question to your draft test with the + icon.
Delete a question from your draft.
Toggle the arrow to view whole question.
Move the location of question by dragging.
Save your test.