**Level 1** users can push a button to generate an entirely new version of an existing document. **You do not need to know anything about
FX Draw or FX Equation.** You can even produce new, fully worked solutions without understanding the mathematics! **Level 1 is for everyone.**

**Level 2** users use existing materials to build a new MultiDoc . **You do not need to know anything about FX Draw or FX Equation **
but you do need to know how to use Word. Efofex is providing an always expanding collection of materials (FX Library) that can be used by Level 2 users. **Level 2 is for busy teachers.**

**Level 3** is using the power of FX Draw and FX Equation to create your own questions. This is how mathematics teachers
have used our products for decades - as a highly customised environment for mathematics teachers to create graphics and equations. You need to understand how to use \
FX Draw and FX Equation but you do not need to explore the more complicated aspects of MultiDocs.

**Level 4** provides publishers, content creators and interested teachers with an **incredibly** powerful tool for the creation of regeneratable mathematical materials.
You will be exploring **all** of the power of FX Draw and FX Equation. Challenging... but rewarding! **Level 3 is for teachers and authors who want to massively enhance their productivity.**