the problem is, after destroy the window the editor is gone. I have the following two solutions

PHP Code:
Ext.kv73.FeedbackGrid Ext.extend(Ext.grid.GridPanel, {
    
//some properties
    
,initComponent:function() {
        
        
Ext.apply(this, {
            
editor : new Ext.ux.grid.RowEditor({
                    
saveText'Speichern'
                    
,cancelText'Abbrechen'
                    
,listeners:{
                        
beforeedit : function(editorPanel,rowIndex){
                            var 
rec editorPanel.grid.getStore().getAt(rowIndex);
                            if (
rec.data.user != currentUserName) {
                                return 
false;
                            }
                            return 
true;
                        }
                    }
                })
        });

        
Ext.apply(this, {
            
store//store
            
,listeners//listeners
                
})
            ,
columns: [{
                    
header"Kopf"id:'headline'width250sortabletruedataIndex'headline'editor: {
                            
xtype'textarea'
                            
,allowBlankfalse
                        
}, rendererthis.renderPreTag
            
}]
            ,
plugins: [
                
this.editor
            
]
        });

        
Ext.kv73.FeedbackGrid.superclass.initComponent.apply(thisarguments);
    } 
// eo function initComponent

    
,onRender: function() {

            
this.store.load();

        
Ext.kv73.FeedbackGrid.superclass.onRender.apply(thisarguments);
    } 
// eo function onRender

,listeners: {
        
headerclick: function(gridcolumnIndexeventObject) {
            var 
header grid.colModel.getColumnHeader(columnIndex);
            var 
out header.match('div');
            if ( 
out != null) {

                var 
record = new this.feedback({
                    
headline'Kopfzeile'
                    
,content'Text'
                    
,usercurrentUserName
                    
,lastUpdated: new Date()
                    ,
dateCreated: new Date()
                });

                
this.editor.stopEditing();
                
this.store.insert(0record);
                
this.getView().refresh();
                
this.getSelectionModel().selectRow(0);
                
this.editor.startEditing(0);
            }
        }

    ,
feedbackExt.data.Record.create([{
        
name'headline',
        
type'string'
    
}, {
        
name'content',
        
type'string'
    
}, {
        
name'user',
        
type'string'
    
},{
        
name'lastUpdated',
        
type'date'
        
,dateFormat'n/j/Y'
    
},{
        
name'dateCreated',
        
type'date'
        
,dateFormat'n/j/Y'
    
}])

});

Ext.reg('feedbackgrid'Ext.kv73.FeedbackGrid); 
a other way to inizialise the plugin could be
PHP Code:
,plugins: [
new 
Ext.ux.grid.RowEditor({
                    
saveText'Speichern'
                    
,cancelText'Abbrechen'
                    
,listeners:{
                        
beforeedit : function(editorPanel,rowIndex){
                            var 
rec editorPanel.grid.getStore().getAt(rowIndex);
                            if (
rec.data.user != currentUserName) {
                                return 
false;
                            }
                            return 
true;
                        }
                    }
                })

and in the headerclick listener
PHP Code:
this.plugins[0].stopEditing();
                
this.store.insert(0record);
                
this.getView().refresh();
                
this.getSelectionModel().selectRow(0);
                
this.plugins[0].startEditing(0); 
in the first solution i have 2 times Ext.apply and in the second i have to write this.plugins[0]... So, what is the best way to implement (initialize ) the plugin?

thanks for help