Create Diagramming Sidebar Extension

OOo's gallery is currently a bit lacking when compared to e.g. Visio's way of easy diagramming selection. This proposal is about providing a diagramming extension for the Draw/Impress panes, presenting diagram topics, most-recently-used list, meta-grouping or topics (referring to one clipart item from more than one topic), smaller thumbnails etc. Or maybe extend the gallery towards these goals.