Not immediately but after next page refresh portlets can be made added/removed (
themeChange/LayoutChange) from the dashboard. It could be achieved by modifying
CustomizationManagerService.
It is explained multiple times in this forum that how to modify this Mbean.
View the original post :
http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4254527#...
Reply to the post :
http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...