Mixing 3 color in FDM printer with cura plugin

We are ROC3d tech team (roc3d.com) who engage to research key technics for 3D FDM and ceramic printer. We designed one new cura plugin for mixing 3 color for FDM printer. Based on multi-section different color zone and Repetier firmware M163, M164 command, you can change virtual Extruder T(n) and treat common Gcode files. You should use Repetier firmware which support M163 instead Marlin, and in the configuration change the extruder number as you want , such as 2, 3,4,...16, also need to choos