var nav = Ext.getCmp('mspre-content-region');
    nav.add({
      xtype: 'mspre-tree-option-categories',
      id: 'mspre-tree-categories-panel',
      optionGrid: 'mspre-grid-category',
      columnWidth: mspre.config.size_colump_left
    });

    nav.add({
      xtype: 'mspre-grid-product',
      id: 'mspre-grid-product',
      columnWidth: mspre.config.size_colump_rigth
    });