BCGControlBar library loads toolbar and menu items directly from the resources when you are running the program first time. Next time, library will retrieve it from the registry data, were all customization results were saved. To see your changes, just open customization dialog, switch to the "Toolbars" page and click "Reset All" button. Customization manager will reset all toolbars and menus states.
Starting version 5.4, BCGControlBar Library automatically updates toolbar and menu resources. To enable this feature, you need to pass TRUE to CBCGWorkspace constructor:
CMyApp::CMyApp() :
CBCGWorkspace (TRUE /* bResourceSmartUpdate */)
{
}