A stencil (.vss file) is a collection of shapes associated with a particular Microsoft Office Visio template (.vst file). You can create a new stencil to hold shapes that you use often and want to find quickly. After you have created your new stencil, you can then save it to reuse later or share it with other people.
The keyboard shortcuts described in this Help topic refer to the U.S. keyboard layout. Keys on other layouts might not correspond exactly to the keys on a U.S. keyboard.
In the world of application development many may found that earlier prototyping can help a lot. "Show your ideas at the beginning and be sure that you will get proper feedback from the customer, collect it and build great software" this is a simple rule that helps a lot in my day-to-day activities. I know several kinds of the prototypes but the most difficult is always a GUI.