EXT中怎么隐藏这个属性

Ext.titansoft.bpm.MutiObligeeInputGrid = Ext.extend(Ext.ux.grid.PropertyGrid,{
    
    constructor:function(config){
        config = config || {};
        
        Ext.apply(config,{            
            autoScroll:true,
            columnLines:true,
            listeners:{
                afteredit : this.onAfterEditHandler.createDelegate(this)
            },
            source:[{
                label:'权证类型',
                editor:{
                    xtype:'combo',
                    typeAhead: true,
                    triggerAction: 'all',
                    store:new Ext.data.JsonStore({   
                        fields : ['id','name','hiddenStatus'],
                        data : Ext.titansoft.bpm.resources.findByParent('00000000000000000000300010001000').list
                    }),
                    displayField:'name',
                    selectOnFocus : true,    
                    forceSelection : true,
                    name:'warrantType.id',
                    valueField:'id',
                    mode:'local'
                }
            },{
                label:'权证编号',
                editor:{
                    xtype:'textfield',
                    maxLength:32,
                    name:'warrantNo'                    
                }
            },{
                label:'产权比例',
                editor:{
                    xtype:'textfield',
                    name:'rightScale',
                    maxLength:32                
                }
            },{
                label:'产权来源',
                editor:{
                    xtype:'textfield',
                    name:'rightSource',
                    maxLength:100            
                }
            },{
......