diff --git a/web_widget_x2many_2d_matrix/static/src/js/web_widget_x2many_2d_matrix.js b/web_widget_x2many_2d_matrix/static/src/js/web_widget_x2many_2d_matrix.js
index a05b6b07..520306a3 100644
--- a/web_widget_x2many_2d_matrix/static/src/js/web_widget_x2many_2d_matrix.js
+++ b/web_widget_x2many_2d_matrix/static/src/js/web_widget_x2many_2d_matrix.js
@@ -221,6 +221,12 @@ openerp.web_widget_x2many_2d_matrix = function(instance)
             this.by_id[row.id] = row;
         },
 
+        boolean_is_true: function(x, y)
+        {
+            return this.get_field_value(
+                this.by_x_axis[x][y], this.boolean_field_value);
+        },
+
         // get x axis values in the correct order
         get_x_axis_values: function()
         {
@@ -324,6 +330,16 @@ openerp.web_widget_x2many_2d_matrix = function(instance)
                 val, {'type': this.fields[this.field_value].type});
         },
 
+        // format a value from the database for display
+        format_xy_cell_value: function(put_special_caracter,val)
+        {
+            if (put_special_caracter) {
+                val = '*'.concat(val)
+            }
+            return instance.web.format_value(
+                val, {'type': "string"});
+        },
+
         // compute totals
         compute_totals: function()
         {
@@ -411,10 +427,13 @@ openerp.web_widget_x2many_2d_matrix = function(instance)
         {
             var $this = jQuery(e.currentTarget),
                 val = $this.val();
+                val_sub = val.substring(1)
+                val_pre = val.substring(0,1)
             if(this.validate_xy_value(val))
             {
                 var data = {}, value = this.parse_xy_value(val);
                 data[this.field_value] = value;
+                data[this.boolean_field_value] = false;
 
                 $this.siblings('.read').text(this.format_xy_value(value));
                 $this.val(this.format_xy_value(value));
@@ -423,6 +442,17 @@ openerp.web_widget_x2many_2d_matrix = function(instance)
                 $this.parent().removeClass('oe_form_invalid');
                 this.compute_totals();
             }
+            else if(this.validate_xy_value(val_sub) && val_pre == '*'){
+                var data = {}, value = this.parse_xy_value(val_sub);
+                data[this.field_value] = value;
+                data[this.boolean_field_value] = true;
+
+                $this.siblings('.read').text(val);
+
+                this.dataset.write($this.data('id'), data);
+                $this.parent().removeClass('oe_form_invalid');
+                this.compute_totals();
+            }
             else
             {
                 $this.parent().addClass('oe_form_invalid');