I seem to have found a bug, or else I'm going something wrong that I can't figure. It seems as if the `position` property of the window configuration is completely ignored when using a template. I have made a simple example to show this:
http://dojo.telerik.com/AkiwE
Even though the grid editable has `window: { position: { top: 0, left: 0} } `, the popup window still appears in the middle of the page.