I have this problem where I use the window but I turn off your titles and use my own custom made because of the specifc layout I have. But by doing so I lose the option of making the window draggable since it can only by dragged by its title. Give us a simple config option to set any elements inside the window as the draggable points. That way I can set my own header and make the window draggable by holding it.

Windows should be able to be contained or restricted to a specific area.  This can either be using parameters or by containing it to a parent object/DIV.  

Reasons:

Windows can be dragged anywhere on the browser document and when maximized they take up the entire document.  This is a problem if you have an area of the document that you always want to have visible.  In my example, I have a toolbar at the top of the screen 25px high and I would like the windows to never move into that area so that it is always accessible.

add sure/cancel button on the bottom(default) of Kendo window component

Please consider adding an option to Kendo Window to make it always centered/fixed. This will be essential for Modal windows/dialogs to always stay in the middle of the screen if there are scrollbars on the page. I would go as far as suggest making this the default behavior for windows with modal: true.