Update models documentation

**Feature request**
It would be great to have pagination for controllers.

**Use case**
Many users need this functionality for production deployments.

**Implementation idea**
Add a new config option `enable_pagination` with default `false`.

Start by locating the controller handling and configuration definitions for the project. Trace how controller requests are processed and where options such as enable_pagination are read. Done means pagination works for controllers while the option defaults to false, with coverage for the enabled and disabled behaviors.

Written by the indexing model from the issue text.