The first post in this thread has the rules for requesting a player to be manually added to the Ottoneu player universe.
Generally either FanGraphs adds them to their system and we bring them over automatically, or in rare cases (draft picks, signed internationally) I will add a player manually. In order for a player to be manually added, I need proof they signed with a MLB org.
All that being said, Yoshitomo Tsutsugo has been added, and will get positional eligibility once FanGraphs adds him into their system.