Can you stop Floworks and restart it later and continue?

If you have Floworks saving periodically (every so many iterations, or every time-step), can you stop the calculation, and then reboot the machine, and then restart it later without losing all of the work?

I am doing a computation that will take about 8 days, and I might need to reboot before then.

Is this what the 'use previous results' (I think that is what it says) checkbox is for on the run menu?