Index: ps/trunk/binaries/data/config/default.cfg
===================================================================
--- ps/trunk/binaries/data/config/default.cfg
+++ ps/trunk/binaries/data/config/default.cfg
@@ -167,6 +167,7 @@
 ; > HOTKEYS ONLY
 chat = Return                         ; Toggle chat window
 teamchat = "T"                        ; Toggle chat window in team chat mode
+privatechat = "L"                     ; Toggle chat window and select the previous private chat partner
 
 ; > QUICKSAVE
 quicksave = "Shift+F5"
Index: ps/trunk/binaries/data/mods/public/gui/credits/texts/programming.json
===================================================================
--- ps/trunk/binaries/data/mods/public/gui/credits/texts/programming.json
+++ ps/trunk/binaries/data/mods/public/gui/credits/texts/programming.json
@@ -145,6 +145,7 @@
 			{"nick": "Offensive ePeen", "name": "Jared Ryan Bills"},
 			{"nick": "Ols", "name": "Oliver Whiteman"},
 			{"nick": "olsner", "name": "Simon Brenner"},
+			{"nick": "OptimusShepard", "name": "Pirmin Stanglmeier"},
 			{"nick": "otero"},
 			{"name": "Nick Owens"},
 			{"nick": "Palaxin", "name": "David A. Freitag"},
Index: ps/trunk/binaries/data/mods/public/gui/manual/intro.txt
===================================================================
--- ps/trunk/binaries/data/mods/public/gui/manual/intro.txt
+++ ps/trunk/binaries/data/mods/public/gui/manual/intro.txt
@@ -62,6 +62,7 @@
 ESC: Close all dialogs (chat, menu) or clear selected units
 Enter/return: Open/send chat
 T: Send team chat
+L: Chat with the previously selected private chat partner
 Pause: Pause/resume the game
 Delete: Delete currently selected units/buildings
 Shift + Delete: Delete currently selected units/buildings without confirmation
Index: ps/trunk/binaries/data/mods/public/gui/session/hotkeys/misc.xml
===================================================================
--- ps/trunk/binaries/data/mods/public/gui/session/hotkeys/misc.xml
+++ ps/trunk/binaries/data/mods/public/gui/session/hotkeys/misc.xml
@@ -5,11 +5,15 @@
 	</object>
 
 	<object hotkey="chat">
-		<action on="Press">openChat(false);</action>
+		<action on="Press">openChat();</action>
 	</object>
 
 	<object hotkey="teamchat">
-		<action on="Press">openChat(true);</action>
+		<action on="Press">openChat(g_IsObserver ? "/observers" : "/allies");</action>
+	</object>
+
+	<object hotkey="privatechat">
+		<action on="Press">openChat(g_LastChatAddressee);</action>
 	</object>
 
 	<object hotkey="menu.toggle">
Index: ps/trunk/binaries/data/mods/public/gui/session/menu.js
===================================================================
--- ps/trunk/binaries/data/mods/public/gui/session/menu.js
+++ ps/trunk/binaries/data/mods/public/gui/session/menu.js
@@ -203,7 +203,7 @@
 	});
 }
 
-function openChat(teamChat = false)
+function openChat(command = "")
 {
 	if (g_Disconnected)
 		return;
@@ -211,7 +211,6 @@
 	closeOpenDialogs();
 
 	let chatAddressee = Engine.GetGUIObjectByName("chatAddressee");
-	let command = teamChat ? (g_IsObserver ? "/observers" : "/allies") : "";
 	chatAddressee.selected = chatAddressee.list_data.indexOf(command);
 
 	Engine.GetGUIObjectByName("chatInput").focus();
Index: ps/trunk/binaries/data/mods/public/gui/session/messages.js
===================================================================
--- ps/trunk/binaries/data/mods/public/gui/session/messages.js
+++ ps/trunk/binaries/data/mods/public/gui/session/messages.js
@@ -30,6 +30,11 @@
 var g_ChatTimers = [];
 
 /**
+ * Command to send to the previously selected private chat partner.
+ */
+var g_LastChatAddressee = "";
+
+/**
  * Handle all netmessage types that can occur.
  */
 var g_NetMessageTypes = {
@@ -750,6 +755,10 @@
 	if (chatAddressee.selected > 0 && (text.indexOf("/") != 0 || text.indexOf("/me ") == 0))
 		text = chatAddressee.list_data[chatAddressee.selected] + " " + text;
 
+	let selectedChat = chatAddressee.list_data[chatAddressee.selected]
+	if (selectedChat.startsWith("/msg"))
+		g_LastChatAddressee = selectedChat;
+
 	submitChatDirectly(text);
 }
 
Index: ps/trunk/binaries/data/mods/public/gui/session/session.js
===================================================================
--- ps/trunk/binaries/data/mods/public/gui/session/session.js
+++ ps/trunk/binaries/data/mods/public/gui/session/session.js
@@ -387,7 +387,8 @@
 			"\n" + (g_IsObserver ?
 				translate("Press %(hotkey)s to open the observer chat.") :
 				translate("Press %(hotkey)s to open the ally chat.")),
-			"teamchat");
+			"teamchat") +
+		colorizeHotkey("\n" + translate("Press %(hotkey)s to open the previously selected private chat."), "privatechat");
 
 	Engine.GetGUIObjectByName("idleWorkerButton").tooltip =
 		colorizeHotkey("%(hotkey)s" + " ", "selection.idleworker") +