Wonderful! thxs Vincent!
- For all pages with breadcrumb modified, I must convert manually terminale "parent"page in none terminale page ? - how can I retrieve these pages with breadcrumb modified ?
http://platform.xwiki.org/xwiki/bin/view/Features/ContentOrganization/Nested...
- when I upgrade xwiki the old breadcrumb information is lost (overwrited by new one)?
http://platform.xwiki.org/xwiki/bin/view/Features/ContentOrganization/Nested... "We've hidden the parent-child feature Even though it's hidden you can still turn it back on if you need it while you migrate your content to use Nested Spaces: set the core.hierarchyMode property to parentchild in the xwiki.properties configuration file."
See http://platform.xwiki.org/xwiki/bin/view/Features/ContentOrganization/
And in that page the section: http://platform.xwiki.org/xwiki/bin/view/Features/ContentOrganization/#HMigr...