New sport Json

I am trying to create a Json for a new Sport, founded on Basketball. In link you have the actual version.

I need help for two details of the league table.

First: actually I have three sorting fields, but I need 1 and 3 to sort descending and 2 to sort ascending. I would need to set in Json because I will work in multisite environment and so every new site created is “ready to go”.

Second: we use FIBA rules which are a bit more complex than simple head to head. I found the hint in this forum to add a hidden column to fill with the right position only if normal sorting fails. I know how to add a column, but how make it hidden since the beginning?

PS: I searched the plug-in docs but couldn’t find specific section for Json.

The page I need help with: [log in to see the link]