Specifically the 3 following commands:
/lc_buildpart
/lc_exportbuilding
/lc_exportpart

Tried to use the lc_exportbuilding command but it gives me the following error, so I guess there are some tricks with it...

[12:09:22] [Server thread/INFO] [STDERR]: [mcjty.lostcities.commands.CommandExportBuilding:func_184881_a:129]: java.lang.ArrayIndexOutOfBoundsException: 1 [12:09:22] [Server thread/INFO] [STDERR]: [mcjty.lostcities.commands.CommandExportBuilding:func_184881_a:129]: at mcjty.lostcities.commands.CommandExportBuilding.func_184881_a(CommandExportBuilding.java:51) [12:09:22] [Server thread/INFO] [STDERR]: [mcjty.lostcities.commands.CommandExportBuilding:func_184881_a:129]: at net.minecraft.command.CommandHandler.func_175786_a(CommandHandler.java:119) [12:09:22] [Server thread/INFO] [STDERR]: [mcjty.lostcities.commands.CommandExportBuilding:func_184881_a:129]: at net.minecraft.command.CommandHandler.func_71556_a(CommandHandler.java:91) [12:09:22] [Server thread/INFO] [STDERR]: [mcjty.lostcities.commands.CommandExportBuilding:func_184881_a:129]: at net.minecraft.network.NetHandlerPlayServer.func_147361_d(NetHandlerPlayServer.java:958) [12:09:22] [Server thread/INFO] [STDERR]: [mcjty.lostcities.commands.CommandExportBuilding:func_184881_a:129]: at net.minecraft.network.NetHandlerPlayServer.func_147354_a(NetHandlerPlayServer.java:937) [12:09:22] [Server thread/INFO] [STDERR]: [mcjty.lostcities.commands.CommandExportBuilding:func_184881_a:129]: at net.minecraft.network.play.client.CPacketChatMessage.func_148833_a(SourceFile:37) [12:09:22] [Server thread/INFO] [STDERR]: [mcjty.lostcities.commands.CommandExportBuilding:func_184881_a:129]: at net.minecraft.network.play.client.CPacketChatMessage.func_148833_a(SourceFile:9) [12:09:22] [Server thread/INFO] [STDERR]: [mcjty.lostcities.commands.CommandExportBuilding:func_184881_a:129]: at net.minecraft.network.PacketThreadUtil$1.run(SourceFile:13) [12:09:22] [Server thread/INFO] [STDERR]: [mcjty.lostcities.commands.CommandExportBuilding:func_184881_a:129]: at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [12:09:22] [Server thread/INFO] [STDERR]: [mcjty.lostcities.commands.CommandExportBuilding:func_184881_a:129]: at java.util.concurrent.FutureTask.run(Unknown Source) [12:09:22] [Server thread/INFO] [STDERR]: [mcjty.lostcities.commands.CommandExportBuilding:func_184881_a:129]: at net.minecraft.util.Util.func_181617_a(SourceFile:46) [12:09:22] [Server thread/INFO] [STDERR]: [mcjty.lostcities.commands.CommandExportBuilding:func_184881_a:129]: at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:723) [12:09:22] [Server thread/INFO] [STDERR]: [mcjty.lostcities.commands.CommandExportBuilding:func_184881_a:129]: at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:668) [12:09:22] [Server thread/INFO] [STDERR]: [mcjty.lostcities.commands.CommandExportBuilding:func_184881_a:129]: at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:185) [12:09:22] [Server thread/INFO] [STDERR]: [mcjty.lostcities.commands.CommandExportBuilding:func_184881_a:129]: at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526) [12:09:22] [Server thread/INFO] [STDERR]: [mcjty.lostcities.commands.CommandExportBuilding:func_184881_a:129]: at java.lang.Thread.run(Unknown Source)

nvm -.-