I am taking a bit liberty here, but it would be nice if Click had a tree control to display hierarchical data. For example displaying directories and files on the server.
Features I would like:
1) Expand/collapse nodes.
2) Select/deselect nodes.
3) Listener for expansion and selection events.
4) Custom icons for parent and leaf nodes.
5) Custom node renderer much like the Decorator interface is used to customize the Column control.
Feel free to close this issue if a tree control is not seen as widely useful.