SOLIDWORKS 2016 gives you a new option to move the Confirmation Corner option next to pointer. The existing method of pressing RMB or right click and select OK from the pop up window still works. But in some cases where you need to click the OK or Cancel button from right top corner or feature manager, can now be brought to near to pointer using the shortcut key “D”.
This option works with Part, Assembly and Drawings as well. The shortcut key can be changed to any other key.
Boxer's SOLIDWORKS™ Blog 
Great explanation to possibly the biggest time saving enhancement in SW2016! The D key also brings the new Selection Breadcrumbs right to your pointer. Just click any model face,edge, or vertex then hit “d” and the Breadcrumbs will appear right at the cursor.