Компонент TParamTreeview от TMS Software
http://www.tmssoftware.com/site/paramtv.aspTParamTreeview is a treeview where the user can easily set several parameters through inplace clicking, like in the Outlook rules wizard. Parameters can be set through a custom interface or through selection from a dropdown listbox or popup menu.
Built-in inplace editors include :
* normal edit control
* spin edit control
* mask edit control
* popup list
* popup menu
* datepicker
* timeselector
* input query
* directory picker
* toggle value
+ capability to use custom inplace editors
Includes special design time property editor to add parameters in control
P.S. Могу поделиться всей библиотекой TMS COMPONENT PACK (есть для D5 - D2007)