8. Combine solids to parts

.cut(tool,optimisation?)	cut the tool-shape from the shape, if needed you can add an optimisation directive to the function call, optimisation? = {optimisation:"none" / "commonFace" / "sameFace"}
.fuse(otherShape,.. )	fuse the othershape with the shape. Other applications call this a "union" between to shapes
.intersect(tool)	find the volume that is common to the two shapes considered in this method, other applications call this function "common"
compoundShapes(shapeArray[])	this function is identical to makeCompound
makeCompound(shapeArray[])	allows to combine an array of any type of shape into a single entity that can be displayed.