Squarespace 7.1 Cover Page

How can I set up a Coverpage on 7.1 similar to this? 

https://www.curatedandmade.com.au/

I have added CSS to hide the head and footer however can not find a setting to have the slideshow background with a text box with white background like the example. 

Was curatedandmade.com.au designed on 7.0? 

Thanks, 

Leanne

Above site is 7.0

Click plus icon > Add Gallery Section > Gallery Slideshow Full > Enable Caption > Edit images > Enter caption

Thanks Tuan - I can't seem to find the SLIDESHOW FULL option (I normally use 7.0!!) Edit: I found it. 

How can I have a white box that sits in the middle like: 

Currently I have: 

https://www.theshoreatgerringong.com.au/

(Pwd: theshore)

And need the same sort of box with a Notify Me button to sign up to the mailing list. 

(Header can stay as as header where it is) 

If 7.1, you can add Gallery Block (use this plugin to bring back Gallery Block in 7.1), then you can add title, description, link + CSS to turn link to button.

If you want to add contact form lightbox, you can add white box under gallery block + CSS position to move white box over slide.