Two viewControllers in same folder

Is possible put two view controllers into same folder? I seen many examples but almost all shows how you can create viewController in different namespaces. However when I try put two controllers + views into same folder event failed:

Code:

main/
main/Main.js
main/MainController.js
main/Menu.js
main/MenuController.js

When I did all events in main controller everything works well. However when I wanted add few things, and wanted split Main and Menu into separated controllers, something is wrong.

Code:

Ext.define('App.view.main.Main', {
    extend: 'Ext.container.Container',
    controller: 'main',
    items: [
        {
            xtype: 'mainmenu',
            reference: 'mainMenu'
        }
    ]
});

Code:

Ext.define('App.view.main.Menu', {
    extend: 'Ext.view.View',
    alias: 'widget.mainmenu',
    controller: 'mainmenu',
    
    initComponent: function () {
        var me = this;
        ...
        me.on('itemclick', 'itemMenuClick'); #1
        me.on('itemclick', me.getController().itemMenuClick, me.getController()); #2
        ...
    }
});

#1 when is all functionality in MainController, everything works well. However when I put menu to own view and controlller I get error: [E] Ext.util.Event.getFireInfo(): Unable to dynamically resolve method "itemMenuClick"

#2 above error should be fixed with this enrolment. However still think there is better solution.

Thanks for hints.