How to run a worksheet inside while loop

Hello everyone, I am new in programming with Mathcad Prime 4.0 and I am trying to found a solution to this problem.

I would like to make a while loop, in which a Mathcad worksheet is re-launched at each iteration.

To explain better: I have a worksheet (called ConvWorksheet) that compute a lot of stuff and in the end compute a convergence flag (1 if convergence is reached, 0 otherwise). I need to write an other worksheet that controls when ConvWorksheet has finally computed flag = 1. I tried with the "Include Worksheet" command inside the while loop, but I cannot insert it. Does anyone know how to do this? Thank you a lot!