anchor.diff:  
           obj.forEach(function(o){
             o.modified = false;
  -          console.log(idCount);
             if(!o.id){
               o.id = idCount;
               idCount++;
  
positive.code:       }
        canvas.add(loadedObject);
        counter++;
  //      console.log(last)
        if (counter == last) {
          canvas.renderOnAddRemove = true;
          canvas.renderAll();
  
negative.code: 
    removeWallCircles = function() {
      for(var i=0; i < wallCircles.length; i++){
        wallCircles[i].setOpacity(0);
      }
    }
  
    restoreWallCircles = function() {
      for(var i=0; i < wallCircles.length; i++){
        wallCircles[i].setOpacity(1);
      }
    }
  
  