Mostly, if you haven’t added any new field to the Product & Product Variant you can surely use our extension to integrate Solr to your customized nopcommerce store. However, if you have customized Product, Product Variant or Catalog pages, just drop us an email with details of customization and we’ll be able to inform you whether you can use it or not. Moreover, we do offer a special license with access to Source Code of the plugin. Please contact us for more details of the same.
Yes, all the Solr extension have an open (editable) view files which you can customize or modify as per your requirement for store theme. These View files can be extended in the same way as you extend nopCommerce theme View files by copying them in your theme folder and then customizing it.
You can access support documentation at Support Page. You can also ask your questions at our Support Forum. We also offer live support using Skype to the customer of nopAccelerate extension. Moreover, we also offer free support for installation and configuration for plugin, customizing theme, installing Solr, etc.