I am trying to reuse a store by altering proxy url (actual endpoint rather than params). Is it possible to override proxy URL for a store instance wih the following syntax: 

```
{
...some view config ...
store: Ext.create('MyApp.store.MyTasks',{proxy:{url:'task/my.json'}}),
}

```

if proxy is already well defined on the Store definition?

**EDIT**: AbstractStore source code sets proxy the following way 

```
    if (Ext.isString(proxy)) {
        proxy = {
            type: proxy    
        };
    }

```

**SOLUTION** : store.getProxy().url = 'task/myMethod.json';