This video demonstrates how Flownex can be controlled directly from MATLAB through its API, enabling users to automate simulations, modify inputs, retrieve results, and manage projects programmatically. Flownex provides MATLAB wrapper functions that simplify interaction with the underlying API, allowing users to launch the application, open projects, run steady-state or transient simulations, and close projects using straightforward MATLAB commands. The example shows how a pipe model can be modified by changing its length from MATLAB, solving the model, and retrieving the resulting volume flow rate. Users can access virtually any Flownex input or output property, making it possible to perform automated studies, optimisation routines, and advanced analyses. Overall, the integration provides a simple yet powerful framework for co-simulation and automation workflows between MATLAB and Flownex.