Which practice sets feature allows you to easily use questions from existing content?

The "Import PDF" feature in practice sets allows you to easily use questions from existing content by extracting text directly from a PDF document. This is highly efficient for converting study materials or old exams into new practice sets. "Ignore capitalization" and "Allow equivalent answers" are settings that affect how answers are graded, not how questions are initially sourced or imported. They refine the grading process for questions that have already been created or imported.