diff --git a/binaries/data/mods/public/gui/common/color.js b/binaries/data/mods/public/gui/common/color.js
index aa9473a4f1..a6e8ef79bb 100644
--- a/binaries/data/mods/public/gui/common/color.js
+++ b/binaries/data/mods/public/gui/common/color.js
@@ -144,3 +144,17 @@ function colorizeHotkey(text, hotkey)
 			"[/color]"
 	});
 }
+
+/**
+ * The autocomplete hotkey is hardcoded in SDLK_TAB of CInput.cpp,
+ * as we don't want hotkeys interfering with typing text.
+ */
+function colorizeAutocompleteHotkey()
+{
+	return sprintf(translate("Press %(hotkey)s to autocomplete playernames."), {
+		"hotkey":
+			"[color=\"" + g_HotkeyColor + "\"]" +
+			"\\[" + translateWithContext("hotkey", "Tab") + "]" +
+			"[/color]"
+	});
+}
diff --git a/binaries/data/mods/public/gui/common/functions_utility_loadsave.js b/binaries/data/mods/public/gui/common/functions_utility_loadsave.js
index 67d548a007..cad6e099d6 100644
--- a/binaries/data/mods/public/gui/common/functions_utility_loadsave.js
+++ b/binaries/data/mods/public/gui/common/functions_utility_loadsave.js
@@ -75,3 +75,17 @@ function reallyDeleteGame(gameID)
 	// Run init again to refresh saved game list
 	init();
 }
+
+function deleteTooltip()
+{
+	let deleteTooltip = colorizeHotkey(
+		translate("Delete the selected entry using %(hotkey)s."),
+		"session.savedgames.delete");
+
+	if (deleteTooltip)
+		deleteTooltip += colorizeHotkey(
+			"\n"  + translate("Hold %(hotkey)s to delete without confirmation."),
+			"session.savedgames.noconfirmation");
+
+	return deleteTooltip;
+}
diff --git a/binaries/data/mods/public/gui/gamesetup/gamesetup.js b/binaries/data/mods/public/gui/gamesetup/gamesetup.js
index fce3cd886a..3f103da510 100644
--- a/binaries/data/mods/public/gui/gamesetup/gamesetup.js
+++ b/binaries/data/mods/public/gui/gamesetup/gamesetup.js
@@ -294,6 +294,8 @@ function initGUIObjects()
 
 	resizeMoreOptionsWindow();
 
+	Engine.GetGUIObjectByName("chatInput").tooltip = colorizeAutocompleteHotkey();
+
 	if (g_IsNetworked)
 		Engine.GetGUIObjectByName("chatInput").focus();
 
diff --git a/binaries/data/mods/public/gui/lobby/lobby.js b/binaries/data/mods/public/gui/lobby/lobby.js
index d61dc50781..ef3fe3b02f 100644
--- a/binaries/data/mods/public/gui/lobby/lobby.js
+++ b/binaries/data/mods/public/gui/lobby/lobby.js
@@ -224,6 +224,8 @@ function init(attribs)
 	Engine.LobbyClearPresenceUpdates();
 	updatePlayerList();
 	updateSubject(Engine.LobbyGetRoomSubject());
+
+	Engine.GetGUIObjectByName("chatInput").tooltip = colorizeAutocompleteHotkey();
 }
 
 function returnToMainMenu()
diff --git a/binaries/data/mods/public/gui/replaymenu/replay_menu.js b/binaries/data/mods/public/gui/replaymenu/replay_menu.js
index a41f80192a..5a46e33c04 100644
--- a/binaries/data/mods/public/gui/replaymenu/replay_menu.js
+++ b/binaries/data/mods/public/gui/replaymenu/replay_menu.js
@@ -67,6 +67,7 @@ function init(data)
 		return;
 	}
 
+	initHotkeyTooltips();
 	displayReplayList();
 }
 
@@ -185,6 +186,15 @@ function sanitizeGameAttributes(attribs)
 	});
 }
 
+function initHotkeyTooltips()
+{
+	Engine.GetGUIObjectByName("playersFilter").tooltip =
+		translate("Filter replays by typing one or more, partial or complete playernames.") +
+		" " + colorizeAutocompleteHotkey();
+
+	Engine.GetGUIObjectByName("deleteReplayButton").tooltip = deleteTooltip();
+}
+
 /**
  * Filter g_Replays, fill the GUI list with that data and show the description of the current replay.
  */
diff --git a/binaries/data/mods/public/gui/replaymenu/replay_menu.xml b/binaries/data/mods/public/gui/replaymenu/replay_menu.xml
index 95c9ad63e4..9b2366e350 100644
--- a/binaries/data/mods/public/gui/replaymenu/replay_menu.xml
+++ b/binaries/data/mods/public/gui/replaymenu/replay_menu.xml
@@ -12,7 +12,7 @@
 	<!-- Used to display message boxes. -->
 	<script file="gui/common/functions_global_object.js" />
 
-	<!-- Used for engine + mod version checks. -->
+	<!-- Used for engine + mod version checks and deleteTooltip. -->
 	<script file="gui/common/functions_utility_loadsave.js" />
 
 	<!-- Actual replay scripts after settings.js, as it initializes g_Settings. -->
diff --git a/binaries/data/mods/public/gui/savedgames/load.js b/binaries/data/mods/public/gui/savedgames/load.js
index e70f0c5e09..9f3e6c571d 100644
--- a/binaries/data/mods/public/gui/savedgames/load.js
+++ b/binaries/data/mods/public/gui/savedgames/load.js
@@ -34,6 +34,8 @@ function init()
 		gameSelection.selected = savedGames.length - 1;
 	else
 		selectionChanged();
+
+	Engine.GetGUIObjectByName("deleteGameButton").tooltip = deleteTooltip();
 }
 
 function selectionChanged()
diff --git a/binaries/data/mods/public/gui/savedgames/save.js b/binaries/data/mods/public/gui/savedgames/save.js
index 9aae41c6fc..cdb6c3a3a8 100644
--- a/binaries/data/mods/public/gui/savedgames/save.js
+++ b/binaries/data/mods/public/gui/savedgames/save.js
@@ -37,6 +37,8 @@ function init(data)
 	gameSelection.list = savedGames.map(game => generateLabel(game.metadata));
 	gameSelection.list_data = savedGames.map(game => game.id);
 	gameSelection.selected = -1;
+
+	Engine.GetGUIObjectByName("deleteGameButton").tooltip = deleteTooltip();
 }
 
 function saveGame()
diff --git a/binaries/data/mods/public/gui/savedgames/save.xml b/binaries/data/mods/public/gui/savedgames/save.xml
index 61e3fea54a..f66d16b334 100644
--- a/binaries/data/mods/public/gui/savedgames/save.xml
+++ b/binaries/data/mods/public/gui/savedgames/save.xml
@@ -2,6 +2,7 @@
 
 <objects>
 
+	<script file="gui/common/color.js"/>
 	<script file="gui/common/functions_global_object.js" />
 	<script file="gui/common/functions_utility_loadsave.js" />
 	<script file="gui/savedgames/save.js" />
diff --git a/binaries/data/mods/public/gui/session/chat_window.xml b/binaries/data/mods/public/gui/session/chat_window.xml
index e9a996ecea..4093b3b348 100644
--- a/binaries/data/mods/public/gui/session/chat_window.xml
+++ b/binaries/data/mods/public/gui/session/chat_window.xml
@@ -15,7 +15,6 @@
 		<translatableAttribute id="caption" context="chat input">Text:</translatableAttribute>
 	</object>
 	<object name="chatInput" size="75 44 100%-16 68" type="input" style="ModernInput" max_length="80">
-		<translatableAttribute id="tooltip" context="chat input">Type the message to send.</translatableAttribute>
 		<action on="Press">submitChatInput();</action>
 		<action on="Tab">
 			let playernames = [];
diff --git a/binaries/data/mods/public/gui/session/session.js b/binaries/data/mods/public/gui/session/session.js
index c754a102c6..38f7b101e5 100644
--- a/binaries/data/mods/public/gui/session/session.js
+++ b/binaries/data/mods/public/gui/session/session.js
@@ -293,8 +293,6 @@ function init(initData, hotloadData)
 	if (Engine.IsAtlasRunning())
 		Engine.GetGUIObjectByName("menuExitButton").enabled = false;
 
-	initHotkeyTooltips();
-
 	if (hotloadData)
 		g_Selection.selected = hotloadData.selection;
 
@@ -313,8 +311,21 @@ function init(initData, hotloadData)
 	//setTimeout(function() { reportPerformance(60); }, 60000);
 }
 
-function initHotkeyTooltips()
+/**
+ * Depends on the current player (g_IsObserver).
+ */
+function updateHotkeyTooltips()
 {
+	Engine.GetGUIObjectByName("chatInput").tooltip =
+		translateWithContext("chat input", "Type the message to send.") + "\n" +
+		colorizeAutocompleteHotkey() +
+		colorizeHotkey("\n" + translate("Press %(hotkey)s to open the public chat."), "chat") +
+		colorizeHotkey(
+			"\n" + (g_IsObserver ?
+				translate("Press %(hotkey)s to open the observer chat.") :
+				translate("Press %(hotkey)s to open the ally chat.")),
+			"teamchat");
+
 	Engine.GetGUIObjectByName("idleWorkerButton").tooltip =
 		colorizeHotkey("%(hotkey)s" + " ", "selection.idleworker") +
 		translate("Find idle worker");
@@ -389,8 +400,8 @@ function selectViewPlayer(playerID)
 	Engine.SetViewedPlayer(g_ViewedPlayer);
 
 	updateTopPanel();
-
 	updateChatAddressees();
+	updateHotkeyTooltips();
 
 	// Update GUI and clear player-dependent cache
 	onSimulationUpdate();