Mentioned widgets already exist under the XStore Widgets section while you edit the page https://gyazo.com/a2b78c9e260f7371472c7f985179562b So, you can use them on your site. Also, we are working on demo pages of these elements, don’t have an estimated time but we do our best to create these pages ASAP. But demo pages for some elements won’t be created (for example Google map, Contact form) because you see these elements on every demo.
One standard license is valid only for 1 project. Running multiple projects on a single license is a copyright violation.