Creating a New Season in an Existing Competition
In FIBA Organizer select Competition -> Competitions. Click once on the league you wish to create a new season and click Create -> Season.
In New season window add League season name (do not use 2019-2020, but real name of the league) -> select the year(s) of the Season -> tick Visible -> add Start and End date -> choose Parameter set.
->add or remove additional parameters and click Save button.