Open Delphi, select a component, move to the Object Inspector, select the filter box, and start typing.

Open Delphi, select a component, move to the Object Inspector, select the filter box, and start typing... (Coming soon, among other Object Inspector improvements). Filters anywhere in the property and event names (not only at the beginning).

http://community.embarcadero.com/write-blog-post/entry/coming-soon-to-rad-studio-enhanced-designer-experience