<h:commandButtonrendered="#{placeGroupView.canModifyCurrent and placeGroupView.currentMemberUserNotNull}"action="#{placeGroupView.releasePlace()}"value="#{i18n['placegroupview.releasePlace']}"/>
<h:commandButtonrendered="#{placeGroupView.canModifyCurrent and placeGroupView.currentMemberUserNotNull}"action="#{placeGroupView.releasePlace()}"
<p:commandButtonrendered="#{empty slot.place and empty slot.used}"value="#{i18n['placeslot.lockSlot']}"actionListener="#{placeGroupView.lockSlot}"update="placeslots"/>
<p:commandButtonrendered="#{empty slot.place and not empty slot.used}"value="#{i18n['placeslot.releaseSlot']}"actionListener="#{placeGroupView.releaseSlot}"update="placeslots"/>