Connecting a Squarespace-registered domain to Hostinger

Hi everyone!

I've registered today a domain on Squarespace, and I'd like to make it point to my existing Hostinger's host. 

I've tried following some guides, but I really can't understand what to do make it work. I can't find the option to edit Squarespace's  nameservers, and my dashboard doesn't even show the toggle for unlocking domain.

Anyone who knows how to figure this out? Is this just a matter of time?

I suffer from the same problem.