Question 2: Can I use radio buttons for Force Sells items?
Answer: Yes. You need to first install the WPC Variations Radio Buttons plugin, then choose “Use WPC Variations Radio Buttons” from the Force Sells plugin settings.
The chosen selector interface in the Radio Button tab in each variable product will be displayed, you should check your variable product page if the preferred interface was selected.
Different variable products can use different selector interfaces. Therefore, in the same Force Sells item list, there can be many interfaces.