After a run, the fitness and R-square for the best-of-run model are shown both for the training and testing sets. For the remaining models only the fitness and R-square obtained during training are shown, but you can easily access the fitness and R-square for the testing set by clicking the Test All or Test Current buttons.

Each one of these intermediate models can be activated by clicking on it. And once a model is active, it can be used to make exactly the same kind of analysis and transformations one does with the best-of-run model, that is, to analyze its behavior statistically, translate it into different programming languages, score a database, explore a different evolutionary path by using it as seed, and so forth.

For your reference, in the Report Panel, the active model is highlighted in yellow.