svBuilder-Pro is the AIR application for building SimpleViewer-Pro galleries.
SimpleViewer-Pro (and svBuilder-Pro) relied on Adobe Flash Player and, due to the demise of Flash, they were retired back in 2017.
We then released Juicebox-Pro (and JuiceboxBuilder-Pro) as a HTML alternative (with no reliance on Adobe Flash Player).

It sounds like the layout you are referring to may be from Showkase (perhaps from one of the demo sites here).

With Juicebox-Pro, you can create as many individual galleries as you like. However, if you would like to link them all together, then you would need to do so manually following the instructions and online examples in the Embedding Multiple Galleries support section.
(Also, I've created a single-web-page solution to quickly and easily link together a few galleries which you can find in our online forum here.)

If you are looking for an automated solution to creating and listing multiple galleries, then Showkase might be a more suitable solution for you.

Showkase is a PHP web application (installed on your web server rather than your computer) which allows you to create a complete portfolio web site (integrating multiple galleries) online.
Showkase has full support for Juicebox-Pro and the galleries can be created within the application itself in a web browser interface (or created with JuiceboxBuilder-Pro and imported).

You can create Gallery Index pages and have as many galleries listed on each Gallery Index page as you wish.
Each gallery is represented by a thumbnail image with the gallery title displayed below and the gallery is opened when the user clicks on the image.
Demo sites created with Showkase can be found here and a sample Gallery Index page can be found here.

Showkase can also create non-gallery pages (About, Basic and Contact pages) where you can add information about yourself (or any other content you like).
All of this is done automatically within the Showkase interface without the need for any manual coding at all.
You can take a look around the Showkase interface by logging into the 'Live Demo Admin' here.

Showkase can be purchased as Showkase-Standard (which comes with Juicebox-Lite, the free version) or Showkase-Pro (which comes with Juicebox-Pro).
The only difference between Showkase-Standard and Showkase-Pro is the bundled viewer (Juicebox-Lite vs Juicbeox-Pro).

There is more information on the differences between Juicebox and Showkase in this forum thread.

Have a look at all the links above and if you have any questions, please let me know. Thanks!