To remove some of the core portlets from the Add Application menu and add them in the Control Panel:
Create a hook plugin that modifies the portal properties default.control.panel.portlets and default.add .application.portlets
Create an Ext plugin that modifies liferay-plugin-package.xml and liferay-display.xml
Create an Ext plugin that modifies liferay-portlet-ext.xml and liferay-display.xml
Create an Ext plugin that modifies liferay-look-and-feel.xml
Submit