You can manage your seasons to your TeamPages website in the seasons area of your settings. Whichever season is selected is your current season. Click the 'add' button in the top right corner to create a new season.
Fill out the form that pops up and click save.
Your seasons will display on all of your website pages in the left column. This widget is not optional and cannot be moved to a different location. Users can click between seasons if needed using the dropdown menu.
You can message everyone from a past season when sending a message. Select the season you wish to message before clicking send.