If you have your logged Simulink data in workspace, you can only "plot" it (from MATLAB) after the simulation has completed. There is no way that you can plot the data while the Simulation is running and you are tuning the parameters. That is why Simulink has 'Scopes' - to view this data in real time.
You can consider alternate data logging techniques mentioned in the documentation here:
https://www.mathworks.com/help/simulink/export-runtime-information.html