Dear DHI team,  I am currently working on a mud transportation model using Mike3 MT model.  In a domain, some area is comprised solely of sand, while others are comprised solely of mud.  For the mud, I can set the erosion parameters for the mud in "Bed Parameters - Erosion". However, I have not found a way to set up the erosion rate parameters for sand.  Is there a specific way to set the erosion parameters for sand in the mfm setup file? If not, how should I handle the erosion in areas that are comprised only of sand? Thanks. Best Regards, Kyutae