mapdefinitions.cs and change
RegisterMap(0, 0, 0, 7168, 4096, 0, "Felucca", MapRules.FeluccaRules); to
RegisterMap(0, 0, 0, 7168, 4096, 0, "Felucca", MapRules.TrammelRules);
That change will also make Fel look like Tram with live trees and such. If you dont want that leave the 1 instead of a...