diff --git a/material_maker/doc/user_interface_shortcuts.rst b/material_maker/doc/user_interface_shortcuts.rst
index 403d95a93..9e503f1b3 100644
--- a/material_maker/doc/user_interface_shortcuts.rst
+++ b/material_maker/doc/user_interface_shortcuts.rst
@@ -84,6 +84,9 @@ Graph Editor
 +-------------------------------------------------------+----------------------------------------------------+
 | :kbd:`Ctrl/Cmd-Shift-F`                               | Frame selected node(s)                             |
 +-------------------------------------------------------+----------------------------------------------------+
+| :kbd:`Alt-LMB`                                        | Centers graph view to input aperture node           |
+|                                                       | (from output aperture nodes)                       |
++-------------------------------------------------------+----------------------------------------------------+
 | :kbd:`F`                                              | Color selected comment/aperture node(s)            |
 +-------------------------------------------------------+----------------------------------------------------+
 | :kbd:`C`                                              | Centers view                                       |
diff --git a/material_maker/nodes/portal/portal.gd b/material_maker/nodes/portal/portal.gd
index 0116b2bfe..018963245 100644
--- a/material_maker/nodes/portal/portal.gd
+++ b/material_maker/nodes/portal/portal.gd
@@ -9,6 +9,8 @@ var is_editing := false
 
 var syncing_io := false
 
+var is_navigating_source : bool = false
+
 func _ready() -> void:
 	super._ready()
 	get_titlebar_hbox().get_children().map(func(n): n.hide())
@@ -76,22 +78,63 @@ func _exit_tree() -> void:
 				node.reset_slot()
 
 func _gui_input(event : InputEvent) -> void:
-	if event is InputEventMouseButton and event.double_click:
+	if event is InputEventMouseButton and event.double_click and not event.alt_pressed:
 		setup_portal_edit()
 
+func mouse_in_node_rect() -> bool:
+	return Rect2(Vector2.ZERO, size).has_point(get_local_mouse_position())
+
+func mouse_in_label_rect() -> bool:
+	return %Dragger.get_rect().has_point(get_local_mouse_position())
+
+func set_link_hint(enabled : bool) -> void:
+	if is_portal_out():
+		for node : Control in [self, %Dragger]:
+			node.mouse_default_cursor_shape = CURSOR_POINTING_HAND if enabled else CURSOR_ARROW
+
+func jump_to_source() -> void:
+	if is_navigating_source or is_portal_in():
+		return
+	is_navigating_source = true
+	set_link_hint(false)
+	var graph : MMGraphEdit = get_parent()
+	if not graph:
+		return
+	var source_portal : MMGraphPortal = get_link_source(get_link(), graph)
+	if source_portal != null:
+		graph.scroll_offset = (source_portal.position_offset
+			+ 0.5 * source_portal.size) * graph.zoom - 0.5 * graph.size
+
+	var tween : Tween = get_tree().create_tween()
+	tween.tween_property(source_portal, "modulate", Color(1.5, 1.5, 1.5, 1.0), 0.2).set_trans(Tween.TRANS_CUBIC)
+	tween.tween_property(source_portal, "modulate", Color.WHITE, 0.6).set_trans(Tween.TRANS_CUBIC).set_delay(0.5)
+	source_portal.set_deferred("selected", true)
+	await tween.finished
+	is_navigating_source = false
+
+func set_portal_tip_text() -> void:
+	const editing_tip : String = "Enter: Rename, Ctrl/Cmd+Enter: Batch rename"
+	var normal_tip = "%s#LMB: Select node, #LMB#LMB/F2/Enter: Rename"
+	normal_tip = normal_tip % ["Alt + #LMB: Jump to source, " if is_portal_out() else ""]
+	if mouse_in_node_rect():
+		mm_globals.set_tip_text(tr(normal_tip), 1.0, 2)
+	elif mouse_in_label_rect():
+		mm_globals.set_tip_text(tr(editing_tip if is_editing else normal_tip), 1.0, 2)
+
 func _input(event : InputEvent) -> void:
-	if event is InputEventKey and event.pressed and selected and not is_editing:
+	if event is InputEventKey:
 		match event.get_keycode_with_modifiers():
 			KEY_F2, KEY_ENTER:
-				setup_portal_edit()
+				if event.pressed and selected and not is_editing:
+					setup_portal_edit()
+			KEY_ALT:
+				set_link_hint(event.pressed)
 	elif event is InputEventMouseMotion:
-		if Rect2(Vector2.ZERO, size).has_point(get_local_mouse_position()):
-			mm_globals.set_tip_text(tr("#LMB: Select node, #LMB#LMB/F2/Enter: Rename link"), 1.0, 2)
-		elif %Dragger.get_rect().has_point(get_local_mouse_position()):
-			if is_editing:
-				mm_globals.set_tip_text(tr("Enter: Rename link, Ctrl/Cmd+Enter: Batch rename links"), 1.0, 2)
-			else:
-				mm_globals.set_tip_text(tr("#LMB: Select node, #LMB#LMB: Rename link"), 1.0, 2)
+		set_portal_tip_text()
+	elif event is InputEventMouseButton and event.button_index == MOUSE_BUTTON_LEFT and event.pressed:
+		if event.alt_pressed and (mouse_in_node_rect() or mouse_in_label_rect()):
+			accept_event()
+			jump_to_source()
 
 func _on_dragger_gui_input(event : InputEvent) -> void:
 	if event is InputEventMouseButton and event.button_index == MOUSE_BUTTON_LEFT: