Extending Ext Components and Coolite

[jchau]

I am a noob when it comes to ExtJS, but from most of the tutorials and examples, it seems like extending existing components is the way to go when building 'big' application. For example, the FeedViewer example extend the TreePanel, GridPanel, and TabPanel for better code maintainability and reusability. How can I reproduce FeedViewer example using Coolite (assuming Coolite has all the necessary components finished)? What about using the ManagedIFrame user extension?

[jchau]

Here's another example. There's no built-in field in a formpanel that can display custom data. However, there are a couple of user extensions by community members to achieve the desired functionality. How do I roll those into Coolite?

http://extjs.com/forum/showthread.php?t=20933
http://extjs.com/forum/showthread.php?t=20992