Hi, I've been using the pack file manager to modify the 5th tier port of Piraeus (unique to Athens) into a port building similar to the existing strategic ports (massilia, rhodes etc.). So far I've been successful (tested it in a modified save), BUT i'm having problems when it comes to modifying the startpos.esf inside the dei .pack file. I know that I have to export the startpos.esf, change the port building inside region_arrays into my new port building, and then import it back into the .pack file, but when I run a new campaign afterwards nothing changes, and i'm stuck with a fishing port.
What am I doing wrong??