Just started to use babylon.js and am enjoying its potential. I have successfully created a curved by adjoining a sequence of points as in curve = BABYLON.Mesh.CreateLines("curve", path, scene, true);and adjusted points on the path and updated the curve using curve = BABYLON.Mesh.CreateLines(null, path, null, null, curve);However when I add new points to the path updating the curve using the above code does not give the correct new curve. Using curve = BABYLON.Mesh.CreateLines("curve", path, scene, true);once again draws the correct new curve but leaves behind the original curve. Is there a method of adding points to a path and to update the curve? How do you delete an existing mesh in a scene?