Here is a link to the 19 manual.
https://manuals.ootpdevelopments.com...-settings-page
There are specific settings for fielding and stamina (apart from and not to be confused with the 1-year, 3-year and 5-year recalc settings):
Base Rookie Fielding Ratings on: Defines whether to base rookie fielding ratings on the current season, a 3-year span, or their entire career.
Base Pitching Stamina on: Defines whether to base pitching stamina on the current season, a 3-year span, or their entire career.