Extruder
From MatterControl Manual
Extruder is a sub-category of Printer settings which deal with options for each extruder. This sub-category is dynamic, and has a sub-section for every extruder as specified by the value set in the Extruder Count. The first is named 'Extruder 1', the second 'Extruder 2', etc.
Sub-sections
Extruder X
Settings/Printer/Extruder/Extruder_X has no subpages to list.