diff --git a/Include/Core/Internal.hpp b/Include/Core/Internal.hpp
index c6e2f2b..511e408 100644
--- a/Include/Core/Internal.hpp
+++ b/Include/Core/Internal.hpp
@@ -127,6 +127,7 @@ namespace Internal
     std::int32_t GetGameTick();
     Deque GetGraphicsObjects();
     std::vector<std::vector<std::vector<Deque>>> GetGroundItems();
+    bool GetIsMember();
     HashTable GetItemContainers();
     IndexableData GetItemIndexableData();
     Cache GetItemInfoCache();
diff --git a/Include/Game/Interfaces/Exchange.hpp b/Include/Game/Interfaces/Exchange.hpp
index 9b330ee..c0b9e9b 100644
--- a/Include/Game/Interfaces/Exchange.hpp
+++ b/Include/Game/Interfaces/Exchange.hpp
@@ -13,7 +13,7 @@ class Exchange
 
         typedef enum SLOT_STATE
         {
-            EMPTY = 0,
+            STATE_EMPTY = 0,
             STARTING_BUY_OFFER = 1,
             BUY_OFFER_INCOMPLETE = 2,
             BUY_OFFER_UPDATING = 3,
@@ -24,31 +24,40 @@ class Exchange
             SELL_OFFER_UPDATING = 11,
             SELL_OFFER_CANCELING = 12,
             SELL_OFFER_COMPLETE = 13,
-            STATE_UNDEFINED = 14
+            STATE_DISABLED = 14,
+            STATE_UNDEFINED = 15
         } SLOT_STATE;
 
         typedef enum SLOT_MODE
         {
             BUY = 0,
             SELL = 1,
-            MODE_UNDEFINED = 2
+            MODE_DISABLED = 2,
+            MODE_UNDEFINED = 3
         } SLOT_MODE;
 
         static bool IsOpen();
+        static bool Open();
         static bool Close();
         static SLOT_STATE GetSlotState(const std::uint32_t Slot);
         static bool SlotOccupied(const std::uint32_t Slot);
         static std::vector<SLOT_STATE> GetAllSlotStates();
         static bool AllSlotsOccupied();
-        static std::int32_t GetCurrentSlotIndex();
-        static SLOT_MODE GetCurrentSlotMode();
-        static std::int32_t GetCurrentSlotItemID();
-        static std::string GetCurrentSlotItemName();
-        static std::int32_t GetCurrentSlotAmount();
-        static std::int32_t GetCurrentSlotPrice();
+        static std::int32_t GetOfferIndex();
+        static SLOT_MODE GetOfferMode();
+        static std::int32_t GetOfferItemID();
+        static std::string GetOfferItemName();
+        static std::int32_t GetOfferAmount();
+        static std::int32_t GetOfferPrice();
         static bool OfferOpen();
         static bool CloseOffer();
+        static bool OffersOpen();
+        static bool SlotUseble(const std::uint32_t Slot);
+        static bool CanCollect();
+        static bool Collect(const bool Inventory = true);
 
+        static bool OpenBuyOffer();
+        static bool OpenSellOffer();
 };
 
 /** @} */
diff --git a/Library/libAlpacaLibrary.a b/Library/libAlpacaLibrary.a
index d4b9696..9e1c41b 100644
Binary files a/Library/libAlpacaLibrary.a and b/Library/libAlpacaLibrary.a differ