You can check this demo
and open its BackStage. In the BackStageItem (which is HeaderedItemsControl) there are buttons which activate different Diagrams. Similar to this, you are able to use the RadTileView in the BackStageItem's Content. As for the RadTileView , yes, you are able to set the RadTileViewItems' size so that they fit in the available space. You can check out this blog post
which demonstrates this. You should know that there is a little limitation here - you need to have equal number of items in every TileView row and every TileView column. If you need different numbers of items in the rows or columns, you just have to use help "phantom" items (width 0, height 0). Please let us know if you need further assistance on this.
the Telerik team
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