TL;DRAdd ‘Complex’ difficulty to recipe and technology difficulty dropdown.
What ?Add one or two new items to the recipe and technology difficulty dropdowns on the advanced tab of the map generator window. Add a selection "Complex" for complex recipes/technologies and optionally "Expensive Complex" for expensive complex recipes/technologies.
Why ?The "Complex" difficulty is different than the "Expensive" difficulty because "Complex" recipes can have different inputs and outputs and "Complex" technologies may be structured differently.
An example of a complex recipe would be the basic oil recipe used in 0.17.59 where the normal recipe for basic oil would be that proposed by FF305.
An example of a complex technology tree would be the technology tree in 0.17.59 where the normal technology would be that proposed by FF305.