So another thing has poped up. Remap altitude is a nice feature to get flat areas while keeping the mountains ( in the center,too ). To establish a kind of workflow I tried to export to wilbur x64 1.75 with the special wilbur .mdr format. Importing in wilbur went smooth and I cried out with joy seeing a incise flow PREVIEW butten. So I eroded away happily. Exporting back failed. Using save as 32 bit floating .mdr resulted in a very blank map in FTPro, several other options failed too. Using FTPro 2.3 I hope for some information as I followed the tuts for older versions ( there and back again ) to the point. Any suggestions?