It is possible to bundle selected articles as a special collection (or special issue). For example, articles that deal with the same subject, but which were published in different issues. Or articles that are all linked to a conference. A number of journals on openjournals make use of these possibilities, such as Historical Life Course Studies, LIBER Quarterly and Journal for the History of Knowledge. Should you be interested to use this feature for your journal, do not hesitate to contact the open journals team.