Michael
As the host can I turn on refueling for the league for one race even though in an update refueling wasn’t available anymore.
In a word, No.
The three rules (2 compounds, refuelling & fastest lap) are locked in for an entire season and cannot be changed once the season has been generated, which happens immediately after the last race of a season.
So the rules for next season have to be selected by the host before the final race of the current season.
