Thank you very much for your assistance. The issue is now resolved
I registered the new Kobo Glo with the Kobo Utilities in Calibre, which I had - but never used.
Ejected device.
I reset new Glo to Factory conditions - Settings > Device Information > Factory Reset.
Downloaded the updates via wifi - logged into Kobo - checked the version in Settings> Device Information.
Re-entered Calibre.
Connected, deleted any books which came with the Kobo
Loaded the desired series - ejected book.
The presentation has changed slightly,
Old
Collection: Xanth
25 - Swell Foop
Anthony, Piers
New:
Collection: Xanth
Xanth 25 - Swell Foop
Anthony, Piers
Not quite as tidy as before, however I now can sort on title and have the books in numerical order. Thank you very much!!