#2441/#2540 Fixed the missing "Element index" or "Cell ID" issue.

git-svn-id: https://chaste.cs.ox.ac.uk/svn/chaste/trunk@22715 b5f69653-2bf5-0310-8201-b0dafb8e1405
git-svn-id: https://chaste.cs.ox.ac.uk/svn/chaste/trunk@22717 b5f69653-2bf5-0310-8201-b0dafb8e1405