Creates a style library by specifying the creation method, the library location, and the source library.
Access
Click Start menu 
Programs Autodesk Autodesk Inventor Tools Style Library Manager. In the Style Library Manager, click Create New Style Library.
In the Create New Style Library dialog box:
Creation Method selects how you want to create the library. Click the arrow to choose Copy Existing Style Library, and then modify as appropriate or Create Empty Style Library, and then select styles from one or more libraries.
New Style Library Location browses to the folder where you want to store the new library.
Source Style Library to Copy browses to the library you want to copy when the creation method is Copy. Unavailable when the creation method creates an empty style library.