I understand you want to build and load only one time and then from the test manager run "N" number test cases.
Yes, it is possible to build and load your Simulink application into the Speedgoat real-time machine only once and then run multiple test cases from the Test Manager without having to build and load the application again.
To run multiple test cases, you can create a test scenario and add the test cases to the test scenario. Then, you can run the test scenario. The Test Manager will automatically run all the test cases in the test scenario, one at a time.
For further information, refer to the documentation link below:
