Creating a vertical gallery menu

I am running WordPress 6.3.2 with the Gutenberg block editor plugin. I would like to know how to create a secondary vertical gallery menu on only one page that can call up adjacent Smart Slider galleries located to the right of the menu.

Currently I am implementing this as follows. I create a separate page for each gallery. I insert the appropriate Smart Slider gallery and the menu on each page. Thus each page has both a gallery and a menu when it loads. When you click on one menu item it brings up the appropriate gallery. Having a menu on each page doesn’t seem very efficient. Is there another way to implement this with a single menu?