How to stage/publish my site to only one domain and still work on it

Hi,

I am halfway through a big update - the site is broken in about 1000 places. :slight_smile:

One of the changes that I’ve made is added a field to a CMS collection.

I can’t access that field in my pages until I’ve published the site across all three of my domains.

But I can’t do that because the v1 of the site is already live and I don’t want to break it.

What is the best approach here?

Thanks,
JT