To add a Standard League in Advanced Mode, select a Standard League using the appropriate check box. Standard Leagues have predefined league structures. In selecting a Standard League, you may actually add many leagues to your universe. For example, if you select the check box for Major American League, the All Included Leagues box is populated with a major league and thirteen minor leagues, like this:

See League Types for more information on the definition of Standard Leagues.

Note: You can have only one of each Standard League in a single game. In other words, you cannot have two copies of the Japan Professional Baseball League within one game, although you could accomplish something similar with a Fictional League, or through the use of World Templates.

Once you have added a league or leagues, if you wish to further customize the settings for a league, click on a league in the All Included Leagues box on the lower left, then go to the right pane of the screen and configure the league settings for that league. Repeat that process as many times as necessary.