Opening Class Change
1.The president can enable the National Chapter via the Launch Center
2.After enabling, the 4th class will be unlocked: Builder
3.Meanwhile, Each class will have two additional classes to change to
4.Farmers can change into Agricultural Expert and Defender
5.Raider can change into Siege Master and Special Force
6.Trader can change into Financer and Socialite
7.Builder can change into Architect and Scientist

Class Change
1.Class changes require the Class Change item
2.After changing, Class level and activated cards will be kept (Next change back will bring the usage back as well)
3.Changing to a new class will start a level 1, and will not inherit other class level