XPages Extension Library enablement
The XPages Extension Library must be enabled in each application. You can do this automatically the first time you use a control from the library.
When you first use a control from the XPages Extension Library
in an application, a dialog asks if you want to enable the library.
Click Continue.
To manually enable or disable the library, open Xsp Properties for
the application, select the Page Generation tab,
and select or deselect com.ibm.xsp.extlib.library under XPage
Libraries.