Open a Groovy Console and type upgrade "latest".

Select the Rodin "Import…" menu command and import Lift.zip.
Right-click on the MLift model and select the "Start Animation" command:

Click on setup_constants and initialise in the Events view:

Go into the ProB Menu at the top and select Open BMotionStudio Visualization:

Click on the button in the top-left of the BMotion Studio view, click the "Browse" button:

and navigate to the "lift.html" file:

You can now see a graphical visualisation of the state of the model:

You can also click on the buttons in the HTML page to control the model.