[Users] Stop MoL after tolerance is reached

Dear all

I'm trying to construct Brill wave initial data by transforming the elliptic pde equation for the conformal factor in to a wave-like equation with a source. After reaching a stationary state, I want to stop the evolution and give the stationary state as an initial data for the BSSN system.

I'm evolving the wave-like equation with MoL and my question is, How can I stop the MoL evolution if the solution reaches the numerical tolerance and then pass it as initial data?

Erik