diff --git a/src/main/java/com/github/sebseb7/autotrade/config/Configs.java b/src/main/java/com/github/sebseb7/autotrade/config/Configs.java
index 620e7c7..728f556 100644
--- a/src/main/java/com/github/sebseb7/autotrade/config/Configs.java
+++ b/src/main/java/com/github/sebseb7/autotrade/config/Configs.java
@@ -23,7 +23,8 @@ public class Configs implements IConfigHandler {
 		public static final ConfigBoolean ITEM_FRAME = new ConfigBoolean("selectUsingItemFrame", true,
 				"Select buy/sell items with item frames (max. distance 3) with items nametagged \"buy\" or \"sell\"");
 		public static final ConfigBoolean GLASS_BLOCK = new ConfigBoolean("selectUsingGlassBlock", false,
-				"Select input and output containers by placing red (input) and blue (output) stained glass blocks 3 blocks above them");
+				"Select input and output containers by placing red (input) and blue (output) stained glass blocks <selectionBlockOffset> blocks above them (or below if negative)");
+		public static final ConfigInteger SELECTOR_OFFSET = new ConfigInteger("selectionBlockOffset", 3, -10, 10, "");
 		public static final ConfigBoolean ENABLE_SELL = new ConfigBoolean("enableSell", false,
 				"Enable selling (if disabled emeralds are taken from the input container)");
 		public static final ConfigString SELL_ITEM = new ConfigString("sellItem", "minecraft:gold_ingot",
@@ -56,9 +57,9 @@ public class Configs implements IConfigHandler {
 				"true: Start the delay after the villager was unloaded; false: Start the delay after the trade has been completed");
 
 		public static final ImmutableList<IConfigValue> OPTIONS = ImmutableList.of(ENABLED, ITEM_FRAME, GLASS_BLOCK,
-				ENABLE_SELL, SELL_ITEM, SELL_LIMIT, ENABLE_BUY, BUY_ITEM, BUY_LIMIT, MAX_INPUT_ITEMS, INPUT_CONTAINER_X,
-				INPUT_CONTAINER_Y, INPUT_CONTAINER_Z, OUTPUT_CONTAINER_X, OUTPUT_CONTAINER_Y, OUTPUT_CONTAINER_Z,
-				VOID_TRADING_DELAY, VOID_TRADING_DELAY_AFTER_TELEPORT);
+				SELECTOR_OFFSET, ENABLE_SELL, SELL_ITEM, SELL_LIMIT, ENABLE_BUY, BUY_ITEM, BUY_LIMIT, MAX_INPUT_ITEMS,
+				INPUT_CONTAINER_X, INPUT_CONTAINER_Y, INPUT_CONTAINER_Z, OUTPUT_CONTAINER_X, OUTPUT_CONTAINER_Y,
+				OUTPUT_CONTAINER_Z, VOID_TRADING_DELAY, VOID_TRADING_DELAY_AFTER_TELEPORT);
 	}
 
 	public static void loadFromFile() {
diff --git a/src/main/java/com/github/sebseb7/autotrade/event/KeybindCallbacks.java b/src/main/java/com/github/sebseb7/autotrade/event/KeybindCallbacks.java
index dcbeb5b..6283d11 100644
--- a/src/main/java/com/github/sebseb7/autotrade/event/KeybindCallbacks.java
+++ b/src/main/java/com/github/sebseb7/autotrade/event/KeybindCallbacks.java
@@ -237,31 +237,33 @@ public class KeybindCallbacks implements IHotkeyCallback, IClientTickHandler {
 			int playerZ = (int) mc.player.getPos().getZ();
 			int playerY = (int) mc.player.getPos().getY();
 
-			for (int x = playerX - 6; x < playerX + 6; x += 1) {
-				for (int z = playerZ - 6; z < playerZ + 6; z += 1) {
-					for (int y = playerY - 6; y < playerY + 6; y += 1) {
+			int selectorOffset = Configs.Generic.SELECTOR_OFFSET.getIntegerValue();
+
+			for (int x = playerX - (selectorOffset + 3); x < playerX + (selectorOffset + 3); x += 1) {
+				for (int z = playerZ - (selectorOffset + 3); z < playerZ + (selectorOffset + 3); z += 1) {
+					for (int y = playerY - (selectorOffset + 3); y < playerY + (selectorOffset + 3); y += 1) {
 						BlockPos pos = new BlockPos(x, y, z);
 						if (mc.player.clientWorld.getBlockState(pos).isOf(Blocks.RED_STAINED_GLASS)) {
 							if ((x != Configs.Generic.INPUT_CONTAINER_X.getIntegerValue())
-									|| ((y - 3) != Configs.Generic.INPUT_CONTAINER_Y.getIntegerValue())
+									|| ((y - selectorOffset) != Configs.Generic.INPUT_CONTAINER_Y.getIntegerValue())
 									|| (z != Configs.Generic.INPUT_CONTAINER_Z.getIntegerValue())) {
 								Configs.Generic.INPUT_CONTAINER_X.setIntegerValue(x);
-								Configs.Generic.INPUT_CONTAINER_Y.setIntegerValue(y - 3);
+								Configs.Generic.INPUT_CONTAINER_Y.setIntegerValue(y - selectorOffset);
 								Configs.Generic.INPUT_CONTAINER_Z.setIntegerValue(z);
 								InfoUtils.showGuiOrInGameMessage(Message.MessageType.INFO,
-										"autotrade.message.input_container_set", x, y - 3, z);
+										"autotrade.message.input_container_set", x, y - selectorOffset, z);
 							}
 							break;
 						}
 						if (mc.player.clientWorld.getBlockState(pos).isOf(Blocks.BLUE_STAINED_GLASS)) {
 							if ((x != Configs.Generic.OUTPUT_CONTAINER_X.getIntegerValue())
-									|| ((y - 3) != Configs.Generic.OUTPUT_CONTAINER_Y.getIntegerValue())
+									|| ((y - selectorOffset) != Configs.Generic.OUTPUT_CONTAINER_Y.getIntegerValue())
 									|| (z != Configs.Generic.OUTPUT_CONTAINER_Z.getIntegerValue())) {
 								Configs.Generic.OUTPUT_CONTAINER_X.setIntegerValue(x);
-								Configs.Generic.OUTPUT_CONTAINER_Y.setIntegerValue(y - 3);
+								Configs.Generic.OUTPUT_CONTAINER_Y.setIntegerValue(y - selectorOffset);
 								Configs.Generic.OUTPUT_CONTAINER_Z.setIntegerValue(z);
 								InfoUtils.showGuiOrInGameMessage(Message.MessageType.INFO,
-										"autotrade.message.output_container_set", x, y - 3, z);
+										"autotrade.message.output_container_set", x, y - selectorOffset, z);
 							}
 							break;
 						}