Few questions

Hello, i have your plugin Upsell Funnel. It is nice, but few things. If possible, you ll help me with settings.

1. Is possible rotate more products, by one only? Because now is showing only 1st, or every.
https://prnt.sc/iNjg04gFBWbT
2. This product should by filter by RANDOM, But it looks, that it showing still same 1O products. It is not great (when i refresh page or go on different page, and then back to checkout:
https://prnt.sc/xOvKhCEGiJE1
3. Bug. I thing that here is BUG. When i add some products from Offer box. And then go to Cart, and want DELETE one of product, so it will DELETE all product at once. It is bad :/
4. sometimes are showing Variable product by Size, it is not great. Is possible Dont showing it like that?
https://prnt.sc/DZG2uKUzzWt6

Thank you a lot. Best regards.
Lukas