• Stop the Cache if it is running.
• Click on the 'Data Sharing' tab which will open up the following screen:

• Click on 'Add Shared Types' button. A 'Select Data Sharing Classes' dialog will appear, as shown below.
• You are required to specify Shared Type name in 'Name' field.
• Browse for the assembly/jar which contains the class you want to share in cache. All the selected assemblies will be shown in the 'Loaded Classes' pane containing their respective classes.
• Select the class you want to add in the selected classes list.
• Use 'Add Class' button to add the selected classes.
• All the selected classes will be listed in the 'List of selected Classes' pane with their Class Name, Version and Type.
• Click 'OK' to continue.

• All the classes contained in the selected 'Shared Type' will be shown here.
• Bottom pane lists the 'Attributes Union List' and 'Selected Class Attributes' in their respective panes.
• Class Attributes are already mapped with the Attribute Union List. This mapping is done at run time. You can see the class mapping by clicking on the particular class. 
• Here you can remap the attributes of the selected class with Attribute Union List using dropdown list.
• You can add a new 'Shared Type' and a version to an existing Shared Type by right clicking on it.
• Shared Type configurations can be import and export in XML file using "Import" and "Export" button. The configurations will be saved in XML file.

• Once the mapping of attributes is done, apply changes to the cache.