Storing/editing Data for time by going back to the previous simulation in one particular run

Hi All!

I have this task where I have to compute the time for one particular action in my simulink model, and based on its value I have to go back in simulation and make the necessary changes. For eg. I need to compute the time period for which a signal goes off (in one straight shot, not like in total, but like when its off, for how long it stays off before it gets back on), and if this time period is less than a particular value, I have to make the signal to remain on.

Now, here in the shown signal, I have to compute Ts in simulation run, and if Ts is less than some predefined time T, the signal must remain on within this Ts, time period.

*And this check I have to apply over the entire signal range.

Thanking you in anticipation.