How to inspect arbitrary Ext component on the screen from Chrome console?
Open Chrome's developer tools (F12) and select the Magnifying Glass icon to select a DOM element within the page:
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Click the component on the page you are looking for, and it will be highlighted in the Elements tab of the Chrome toolbar. If you haven't found the correct component, navigate the DOM in the Elements tab to find it. Every Ext.Component has an automatically generated id that begins with ext-comp-. Copy this id.
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Go to the Console tab and select the correct frame for your tab (Ext tabs are opened with renderPanel.jsp):
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Use Ext.getCmp('id') in the Console to retrieve the component:
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