The first problem is that importation by splitting the document doesn't work in 2.3 version... I tried to split by heading of level 1. It said to me that the importation succeeds and showed me the link to the new page (said Rapports.parent) but when I accessed it I had the "The page doesn't exist"... Later, I realized that my document was imported in the Main.WebHome page !! Weird ! In fact, the importation succeeded but not where I wanted and asked for ! In fact, I had the equivalent of "Rapports.parent" in the Main.WebHome i.e. the content and the links to Rapports.child pages. Unfortunately, the links had the [?] of "page not existing". Indeed, they links to "Rapports.children" pages which don't exist : the child pages were also imported behind the parent page (itself behind the content of Main.WebHome)...