You can enter all three leagues if you wish.
On the main screen in TOM just under where it says user is logged on as "username" it will tell you what league you are currently viewing.
To switch to another league simply click on one of the pictures at the top right of the screen.
If you have entered horses in one league and you want to switch them to another league then go to the Upload/Transfer section and use the delete option. Then you can upload them to the league of your choice, if this is your primary stable then you should have an allowance of 25 uploads.
The delete option will be removed when the season starts, so if everyone would like to make all their mistakes now and get it over with, I'm sure the staff would be very grateful
