How to automate inifnity challenges and Break infinity

[WizziPop]

I'm just between the last 2 Eternity Milestones, I have 33 Eternities.
I have the automater "Automate Eternities" unlocked but I don't get how we are supposed to automate eternities if without automating Infinity challenges in order to break infinities. I've not found this feature.

[Kyouko Tsukino]

You should already have the milestone that makes your best infinity challenge times persistent. You don't have to do challenges ever again past that point, and you will probably be able to reach eternity before you reach infinity at that point, too.

[WizziPop]

Originally posted by Kyouko Tsukino:

You should already have the milestone that makes your best infinity challenge times persistent.

I see it now. It's the first Milestone of Eternity Challenges. I have to complete two more of theses challenges then. Thanks for the help!