Thank you for using our services. You can create a custom module with Thunder very easily. I think that the right configuration for you should be to use Open Access from the options that Thunder gives you. You can find more information on how to create custom module with Thunder in the Thunder start page which is shown in Visual Studio after you install Thunder. There are videos and documentation there how to do it. If you need One to Many relationships in your project you can use all the power of Open Access. Here is a documentation on that http://www.telerik.com/help/openaccess-classic/map-collection-fields-one-many.html
Hope that this helps. Write us back if you need more help on that.
Ivan Georgiev | Sitefin1ty
Do you want to have your say in the Sitefinity development roadmap? Do you want to know when a feature you requested is added or when a bug fixed? Explore the Telerik Sitefinity CMS Ideas&Feedback Portal
and vote to affect the priority of the items