Hello,

Thank you so much for being with us.

1. If you need to create some products with variations (sizes, colors etc.) we suggest you to watch our video tutorial https://www.youtube.com/watch?v=gp3SMkKvUvs

2-3. All permalinks options you can find in the Dashboard -> Settings -> Permalinks.

4. All you need to do is to disable “Hard crop” option in Dashboard -> WooCommerce -> Settings -> Products -> Display -> Image sizes. After changing image sizes you need to regenerate all thumbnails using this plugin https://wordpress.org/plugins/regenerate-thumbnails/

Kind Regards,
Xtemos