Mark mode allows you to generate custom test cases from the model.

To enable Mark mode, click on Mark icon on the left sidebar area. You will be prompted to choose the Sequence Mode to execute the model. Mark icon will turn green indicating it's enabled.

Once the Mark mode is enabled, select the states and transitions you wish to cover by clicking on the states and transitions while holding down the shift or ctrl key. You should see the states and transitions tagged with a sequence number indicating the order they were marked. The order may or may not be meaningful depending on the sequencer used.

Click on Run button to execute the model.