1. Model Input A model input provides a reference to a model object as input to a workflow. The Type field can be used to restrict which types of model objects are valid for this input. If no type is specified, any model object can be used. 1.1. Array mode When Array is enabled, multiple model references can be specified. This produces an array of model references as output. 1.2. Use Reference When Use Reference is enabled, the input refers to an existing model object in the workspace by reference rather than by value. Integer Number