Comment 2 for bug 1490904

System bookmarks like "Home", "Recent", "Trash" and "Filesystem" are not intended to be movable, renameable or deletable at the moment (there is no mechanism to record their position in settings). However there is a branch "lp:~jeremywootten/pantheon-files/experimental-group-builtin-places-at-start-of-sidebar" that will group these bookmarks together in their own category. In that branch, "Recent" is placed just above "Trash", although the System category is placed at the top of the sidebar. Perhaps this will help you?