Hi,
1/ The read more button can be activated in the config, in the main tab. If you put one read more in your description and that you use the layout type "image and description" in the hikashop options of your menu/module, you will see the text before the read more on the listing.
2/ Images can be added in the description if you want. But only images which are added to the images zone will be used for the listing and redimensionned automatically based on your settings in the files tab of the configuration.
3/ By default, your users will have to register when checking out. In our commercial versions, you will find a "regsitration" option in the config under the tab checkout which will allow you to not ask for username/password and choose whether to automatically create an account or to not create a user account. The address fields can be customized via the menu Display->Custom fields. Additional fields types are available in commercial versions:
www.hikashop.com/en/support/documentatio...p-field-listing.html
4/ Yes, the address of the user is carried over.