title: Best way to access adjacent components / fields
body: <p>I am looking for a way to access components / field that are either in the same items array as the accessing one or even only in a same parent items array (the last one is just a option). </p>
  
  <p>In ExtJS3 this was easy by simply defining a <code>ref</code> in the owner container but I didn't found anything like that in ExtJS4.</p>
  
  <p>I know that I can use <code>Ext.ComponentQuery()</code> or the shortcuts <code>up()</code> / <code>down()</code> or even <code>Ext.getCmp()</code> but they are all not what I am looking for, cause they just executes a bunch of code while the <code>ref</code> was such an easy Way to do things. 
  Yes, I am aware of the fact that using a ComponentQuery is much more fail safe than the use of hard coded references. But I just want to know if there are some other ways to do this.</p>