Actually, I was wrong. It's possible with template style 4 and turn off the stars and date. Upload the company logo as the Avatar. Then use this custom CSS in the template.

h3.wpproslider_t4_H3_3.wprev_preview_tcolor1_T4 {
display: none;
}
.wpproslider_t4_IMG_2 {
border-radius: 0;
height: unset;
}




It ends up looking like this...

It's possible with template style 4 and turn off the stars and date. Upload the company logo as the Avatar. Then use this custom CSS in the template.

h3.wpproslider_t4_H3_3.wprev_preview_tcolor1_T4 {
display: none;
}
.wpproslider_t4_IMG_2 {
border-radius: 0;
height: unset;
}

It ends up looking like this...

Sorry, no it can't do that.

Sorry, that currently isn't a feature. I do hope to add it in the future.

Yes, for template style 1 you can use this CSS in the custom CSS field.

.wprevpro_t1_IMG_4 {
border-radius: 0%!important;
}

Like so...

You can create multiple templates. The code you add to the page will be different for each template.

Here are some instructions to get them on a Product page....

https://testimonialhubshopify.userecho.com/en/knowledge-bases/2/articles/233-how-to-easily-add-reviews-to-product-page

If you have the Paid version you can filter the review template to only show the ones you want.

You could possibly add the attribute with some jquery. I'm not seeing a way to add attributes with the Shopify api.

https://shopify.dev/docs/admin-api/rest/reference/online-store/scripttag#create-2021-04

Another option might be to reload the slider javascript file when you go back to the page with a function like so...

function refreshsliderpreview(){
$.getScript("../../shopifyapp/showsrstemplate.js");
}