Too few replenishment ports in Mediterranean, inaccurate.

[Ashikaga]

In the Mediterranean theatre there at one time comes a historic message stating uboats should replenish and repair in Italian or French ports. On the map the only ports with replenishment/refit possibility are:

Piraeus, La Spezia and Marseille. All other ports have the anchor logo 5km inland and cannot be used as such..

Now someone at one stage (Vecko?) Put these ports in place on the map. Sadly only three ports to replenish is completely historically inaccurate since there were several in Greece, Yugoslavia and Italy as well as North Africa. Is it possible to change this myself somehow and if so, how?

Best,
Ashi.