This is a simple command-line tool for editing portal locations in a data map (DMap) file. Portals are used in Conquer Online to connect maps and teleport player between maps. Portals are given an associated X and Y coordinate, as well as an index. The tool outputs a new-line separated list of portal records for editing in the format of index,x,y. It accepts the same list and formatting when modifying portal records for a DMap. The tool can be compiled using the golang compiler for Windows, Mac, or Linux.