I have read https://ultimaker.com/en/blog/34012-get-started-with-cura-printing-with-two-colors on doing a multi color (or material) print. I have an ender 3 (so single extruder) printer, so will cura (4.0) just put the change material code in the gcode? Also, I am looking at creating the object in blender or fusion 360 and bringing it into cura, if I do multiple STL files, they will not line up when they are imported. Is there a way to do either a single file with multiple objects, or multiple files that will use the global coordinates so that when it comes into cura it won't align with the bed, rather are imported in place? I don't want to have to align everything manually in cura every time.