How to edit the page customers see while my website is locked

[cb1200]

Hello,

I am currently designing my website prior to my clothing brand release and I have locked my website of course to stop people from being able to see the website.

But I want to customise the screen that they see which tells them to sign for updates when we open the site because of course the web is locked but I’m not sure how to do this, if anyone could help it would be appreciated!

[cb1200]

What do I have to do? Thank you!