Hey. I am attempting to create a tidal simulation, for which I need to turn off the hydraulic head boundary whenever each node is above sea level. I have a code that deletes the values of each time series of each node where the head values are below the node elevation, but I cannot seem to insert a gap, as the IFM code wants a numeric value for each time step. I could do it manually but the is too much work for too many nodes, and I believe there must be a way to do it with code, or perhaps another way.