Why am I not able to set Manning values - HEC RAS?

Question

I am trying to insert Manning coefficients in Geometry but two out of the three columns in the table are grey and I am unable to import them. Any idea how to fix it?

Answer 1

To fix this issue in HEC-RAS, ensure that you have the appropriate permissions to modify Manning coefficients in the Geometry table. Try running HEC-RAS with administrative privileges, or contact your system administrator for assistance.