The options to configure titles and suffixes are accessed in InterAction Administrator via Regional Settings > Language Options.
You can create new titles and suffixes that either apply for all languages or for a specific, out-of-the-box language. If you want to create a title or suffix that only applies for a particular language, choose the language from the Language drop-down list, then choose New to add the title or suffix.
Based on the language setting for the applicable user, he or she will see all titles and suffixes in InterAction specified for the applicable language as well as those designated for all languages.
Out-of-the-box titles and suffixes can also be edited and deleted.