Hello,
1) Sorry but it is not possible there is no option for that.
2) I saw the screenshot you attached. It seems that the crop is not working correctly. Actually, the crop works correctly when the actual size of the image is greater than the width you set from the setting.
Please try reducing the thumbnail width from Appearance >> Customize >> Woocommerce >> Product Catalog. Then clear cache and check back.
Regards.
Xtemos Studios.