First of all thank you for quick responses and for your help! I need to implement the following layout strategy: Assume we have some region, containing several portlets with different orders. Portlets can be only of 2 states: "minimized" and "normal"; Only 1 portlet in reagion can be in "normal" state at a time; If portlet with order X becomes minimized, portlet with order X+1 must be "normilized"; if X = N; then first-order portlet must be normilized; If portlet with order X becomes normal, previous normal portlet must be minimized; By default, portlet with order 0 must be in normal state; thanks in advance! View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4004335#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...