FX Library is a collection of pre-written MultiDocs materials that you can use as exemplars to create your own questions or directly in tests and exams. FX Library is your best source of regeneratable MultiDocs materials.
Up until recently, we have provided the materials as one question per file. Feedback from teachers has indicated that this is not as useful as a module of materials on the same content.
While we may still release individual questions as individual documents, the majority of our materials will be released as modules in the future.
A module is a collection of questions/materials on the same topic. The questions will range from simple to complex and should allow you to quickly create your own regeneratable materials. All questions come with fully worked solutions. Simply download a module and begin cutting and pasting into your own document.

Modules are like chapters of a book so they take longer to write. We will be working feverishly to increase the amount of materials available.
Soon, we will be looking for authors to help us produce a comprehensive library of materials for you to use. More details to come soon!