Refactor store for better readability

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

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

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

The issue does not name files, tests, or entry points. Start by locating the store for models and the configuration parsing, then determine how model retrieval currently works; done means a new enable_pagination option defaults to false and pagination works for model-related operations.

Written by the indexing model from the issue text.