Setting models and number of steps
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* **Set model**, setting the model we are interested to work with.
    * A custom app defines a series of elements, that may be common to a number of models.
    * If our model needs some parameters to precise a specific instance of the problem, the custom app should provide the mechanism to generate those parameters for the model.
* **Set number of steps by cycle**.
    * Some models are designed to evolve following a number of ycles/loops performing a number of operations each cycle; in those cases, each cycle is composed of a number of steps, so providing this information could be important for the simulation to be structured in cycles with steps.
    
Video
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.. raw:: html
   :file: inclusionModelsUse.html