Index: binaries/data/mods/public/gui/session/selection_panels.js
===================================================================
--- binaries/data/mods/public/gui/session/selection_panels.js
+++ binaries/data/mods/public/gui/session/selection_panels.js
@@ -1018,6 +1018,59 @@
 	}
 };
 
+g_SelectionPanels.Turrets = {
+	"getMaxNumberOfItems": function()
+	{
+		return 24 - getNumberOfRightPanelButtons();
+	},
+	"getItems": function(unitEntStates)
+	{
+		if (unitEntStates.every(state => !state.garrisonHolder || !state.garrisonHolder.visibleGarrisonPoints.length))
+			return [];
+
+		let visibleGarrisonPoints = [];
+
+		for (let state of unitEntStates)
+			if (state.garrisonHolder && state.garrisonHolder.visibleGarrisonPoints.length)
+				for (let point of state.garrisonHolder.visibleGarrisonPoints)
+					visibleGarrisonPoints.push(point);
+
+		return visibleGarrisonPoints;
+	},
+	"setupButton": function(data)
+	{
+		let entState;
+		let template;
+		if (data.item.entity)
+		{
+			entState = GetEntityState(data.item.entity);
+			template = GetTemplateData(entState.template);
+		}
+
+		data.button.onPress = function() {
+			warn("Called!");;
+		};
+
+		data.button.enabled = !!entState && controlsPlayer(g_ViewedPlayer);
+
+		data.button.tooltip = "Some (still bogus) tooltup.";
+
+		data.guiSelection.sprite = "color:" + g_DiplomacyColors.getPlayerColor(!entState ? data.player : entState.player, 160);
+		data.button.sprite_disabled = data.button.sprite;
+
+		// Selection panel buttons only appear disabled if they
+		// also appear disabled to the owner of the building.
+		data.icon.sprite =
+			(!g_IsObserver ? "" : "grayscale:") +
+			(!!template ? "stretched:session/portraits/" + template.icon :
+				"stretched:session/icons/groups.png");
+
+		setPanelObjectPosition(data.button, data.i + getNumberOfRightPanelButtons(), data.rowLength);
+
+		return true;
+	}
+};
+
 g_SelectionPanels.Upgrade = {
 	"getMaxNumberOfItems": function()
 	{
@@ -1176,6 +1229,7 @@
 	"Gate", // Must always be shown on gates
 	"Pack", // Must always be shown on packable entities
 	"Upgrade", // Must always be shown on upgradable entities
+	"Turrets",
 	"Training",
 	"Construction",
 	"Research", // Normal together with training
Index: binaries/data/mods/public/gui/session/selection_panels_right/turrets_panel.xml
===================================================================
--- /dev/null
+++ binaries/data/mods/public/gui/session/selection_panels_right/turrets_panel.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<object name="unitTurretsPanel"
+	size="10 12 100% 100%"
+>
+	<object>
+	<repeat count="24">
+		<object name="unitTurretsButton[n]" hidden="true" style="iconButton" type="button" size="0 0 36 36" tooltip_style="sessionToolTipBottomBold" z="100">
+			<object name="unitTurretsSelection[n]" type="image" ghost="true"/>
+			<object name="unitTurretsIcon[n]" type="image" ghost="true" size="3 3 33 33"/>
+		</object>
+	</repeat>
+	</object>
+</object>
Index: binaries/data/mods/public/simulation/components/GarrisonHolder.js
===================================================================
--- binaries/data/mods/public/simulation/components/GarrisonHolder.js
+++ binaries/data/mods/public/simulation/components/GarrisonHolder.js
@@ -106,6 +106,16 @@
 };
 
 /**
+ * Get the visible garrison points of this entity.
+ *
+ * @return {Object[]} - An array containing visibly garrison points.
+ */
+GarrisonHolder.prototype.GetVisibleGarrisonPoints = function()
+{
+	return this.visibleGarrisonPoints;
+};
+
+/**
  * @return {Array} unit classes which can be garrisoned inside this
  * particular entity. Obtained from the entity's template.
  */
Index: binaries/data/mods/public/simulation/components/GuiInterface.js
===================================================================
--- binaries/data/mods/public/simulation/components/GuiInterface.js
+++ binaries/data/mods/public/simulation/components/GuiInterface.js
@@ -360,7 +360,8 @@
 			"buffHeal": cmpGarrisonHolder.GetHealRate(),
 			"allowedClasses": cmpGarrisonHolder.GetAllowedClasses(),
 			"capacity": cmpGarrisonHolder.GetCapacity(),
-			"garrisonedEntitiesCount": cmpGarrisonHolder.GetGarrisonedEntitiesCount()
+			"garrisonedEntitiesCount": cmpGarrisonHolder.GetGarrisonedEntitiesCount(),
+			"visibleGarrisonPoints": cmpGarrisonHolder.GetVisibleGarrisonPoints()
 		};
 
 	ret.canGarrison = !!Engine.QueryInterface(ent, IID_Garrisonable);