Form some purposes like how to Check the deployment of the OSLC Connect for Windchill Extension, you need to access the PTC Windchill Customization settings tab. But this is not visible by default on PTC Windchill.
Follow this procedure to enable this Customization tab:
Browse menu on the leftSite buttonUtilities linkBusiness Administration section, and click on Preference ManagementClient Customization item, open the treeClient Customization item, and set the item to YesRefresh the interface, click on the Browse menu on the left and check the top bar, the Customization button is now available.