Retrofit Existing Resuarant sites for ADA Compliance?

Hello, I have three restaurant websites built with Squarespace several years ago. I want to make the ADA compliant and was wondering if I can retrofit these existing sites, or if I need to start from scratch?

I'm using the following Templates:

Native 

Pacific 

And the third one doesn't have a Design button for me to check. I didn't build this page but inherited it. At the bottom of the Pages section is says version 7.1 (could it just be a Squarespace build without template?)

Please let me know if there's further info that would help.

Thank you,

You can access edit mode >> Look on right box >> Click this icon to access Design/Site Styles

On 1/9/2024 at 4:31 PM, tuanphan said:

You can access edit mode >> Look on right box >> Click this icon to access Design/Site Styles

Yes, I know I can edit the site I'm looking for more specifics on retrofitting existing sites. I'm asking if something can be added which doesn't compromise the style already in place, but will enhance the website for visitor needing further assistance.

Thank you.