Extending Private League Duration?

Hey there!

I made a Private League for myself to mess around but I have started to enjoy it. The only thing that is bothering me is that the timer is for 12 days before it ends. I seen online the maximum length any private league can run for is 60 days which is fine to me. But I want to know how to extend my current one? I can't find any settings for the league now that I have started it.

Thanks.

For the free private leagues launched this month, there is no way to extend the duration unless GGG decides to extend them. All leagues finish at the end of the month.