Model identifiers are properties from the top level Strategy Results (SR) class of your application that define the model context in your application. The ADM server uses a combination of model identifiers to create adaptive models. When you create an instance of the Adaptive Model rule, there are five default model identifiers (.pyIssue, .pyGroup, .pyName, .pyDirection, .pyChannel). You can keep them or define your own identifiers.
Expand the Model Context section and add a model identifier: