compatibilityModelClasses[1].setCurrentModeler(edgeModeler);
//ARROW
compatibilityModelClasses[2] = new CompatibilityModelClass("ARROW", true, false, false, false, false);
compatibilityModelClasses[2].setClassId(classIds++);
CompatibilityArrowModeler arrowModeler = new CompatibilityArrowModeler(engine);
compatibilityModelClasses[2].addModeler(arrowModeler);
compatibilityModelClasses[2].setCurrentModeler(arrowModeler);
//POTATO
compatibilityModelClasses[3] = new CompatibilityModelClass("POTATO", false, true, true, true, true);