-extern GLfloat leftrightFactor, nearfarFactor, bigsmallFactor, updownFactor, rotateFactor, texscaleFactor;
+extern GLfloat leftrightFactor, nearfarFactor, bigsmallFactor;
+extern GLfloat updownFactor, rotateFactor, texscaleFactor;
+extern GLfloat lleftrightFactor, lnearfarFactor;