[ORD] How to set up hydraulic properties of inlets (also Neenah grate question)

I can't figure out where in the inlet library I would enter the Free Open Area and Weir Perimeter for each inlet type. In GEOPAK this was simple to enter and you could also enter a clogging factor. How do you do this in ORD?

I also tried following the help for how to enter Neenah grates using their K factor charts. Do I understand correctly that I would need a separate entry for each of the cross-slopes from the Neenah book (1%, 2%, 4%, 6%)? Does ORD then interpolate for the actual cross-slope? In GEOPAK I didn't use the Neenah info. I only entered Open Area and Weir Perimeter with a clogging factor where necessary.  Has anyone successfully modeled Neenah grates?

Josh

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