Comics 2 can import oldest Library from 1.0 to 1.5 versions of Comics
Go to File > Import Previous Library.
If the menu "Import Previous Library" is not visible, it means Comics can't find a previous library to import.
How Comics import previous Library?
Protagonist -> Feature (cover)
Title -> Title (cover)
Pencils -> Pencils (cover)
Inks -> Inks (cover)
Colors -> Colors (cover)
Series -> Book Name
Publisher -> Publisher
Number -> Issue Number
Pages Number -> Page Count
Date -> Publication Date
Cover Price -> Cover Price
Cover Type -> Type (cover)