When adding a new stop suggest all stations directly connected to last added stop then suggest with a differenti color all station in all lines which contains last segnemt or Maybe all segments ofbcurrent station and specify the line for every suggestion.
When adding a new stop suggest all stations directly connected to last added stop then suggest with a differenti color all station in all lines which contains last segnemt or Maybe all segments ofbcurrent station and specify the line for every suggestion.