If you use calibre, many people use a concept called a plugboard to massage the title of a book to add the series info to it.
Additionaly, the database on the Kobo includes fields for series name and series number. that yet again, calibre can populate.
Additionally, a tool was posted this week that might help. See
small tool for filling book library in Kobo Aura. I have no experience though with this tool.