Save Run-Time Data from Simulation

Hello everyone!

I'm running a simulation and exporting the data to workspace. But when a new simulation starts, I need to save the data generated over again. Is there a way to do this automatically? I mean, when I run a simulation at Simulink, when it finishes Matlab asks me where I want to save the specified data or put a great simulation time and each time step that I want, generate and save the data that I want to export while the simulation is running.

Thank you all in advance.