Create polyline with some points non editable

[lympe92]

Hello guys,
I use leaflet draw to create a polyline. I created a polyline programmatically.

this.polylineDrawer = new L.Draw.Polyline(this.map, {})
this.polylineDrawer.enable();

allMarkerscoords.forEach((mCoord)=> {let latlng=L.latLng(mCoord[0], mCoord[1]);
  this.polylineDrawer.addVertex(latlng);
})

this.polylineDrawer.completeShape()

I want to know if i can keep some points of editable polyline as non editable. How can i do that?