The plugin can download the reviews in the original language. Then there is a translate option on the Tools page.

Currently, you would have to add multiple badges or sliders. One for each business. You also might want to check with Google to see if it would be a good idea to have more than one on a page.

I can add this to my to-do list, but I'm a little behind at the moment. If one of the built-in styles can get you close I can give you some CSS to tweak it some.

You can also create a Child template if you want to take complete control over it. There are some instructions here...

https://wpreviewslider.userecho.com/knowledge-bases/2/articles/553-use-child-theme-to-customize-the-review-template-more

Just released 12.0.3. Give it a try.

Give beta version 12.0.2 a try.

That is a bug. I'll get a fix in.

The z-index is already really high. The issue is that the footer is in a different dom tree branch so the z-index can't go over it. I'll need to change the plugin so it add the form code at the body level of the html. In the meatime you could shift the form up a little.

.wprevmodal_modal-content {
margin-top: 150px;
}