Unable to enter the DNS TXT verification token (from Google)

I have a Squarespace domain.

I have a website hosted on sitesgoogle.com..

I have not found a way to enter the DNS TXT verification token (from Google) into the Squarespace DNS configuration page.

How does this work?

If you need to add a TXT record for a Google Site, you can add it in the Custom Records section using the steps in this guide:

Adding TXT records to a Squarespace-managed domain

Squarespace support can always help you add the record, too!

https://support.squarespace.com/hc/requests/new#choose-topic