- To run a stored procedure (e.g. in the Page_Load server event), please read:
https://discourse.hkvstore.com/t/custom-menu-and-custom-page/4442/1 - To show contents from multiple tables, you need to create a custom page:
https://aspnetmaker.dev/docs/#/customfile.html - Again to create custom content, you should create a custom page.
To build the custom page content, you can generate the project first, then open the project with Visual Studio to edit the custom page content, before saving it later back to the project.