Index: src/window.cpp
===================================================================
--- src/window.cpp	(revision 18684)
+++ src/window.cpp	(working copy)
@@ -166,6 +166,36 @@
 }
 
 /**
+ * Focus the next widget that accepts keyboard input.
+ */
+void Window::FocusNextEditWidget()
+{
+	uint widget_index = 0;
+	uint num_loops = this->nested_array_size;
+
+	if (this->nested_focus != NULL) {
+		widget_index = this->nested_focus->index + 1 % this->nested_array_size;
+		num_loops = this->nested_array_size - 1;
+	}
+
+	for (uint i = 0; i < num_loops; i++) {
+		const NWidgetBase *widget = this->GetWidget<NWidgetBase>(widget_index);
+
+		/* Focus next edit box */
+		if (widget != NULL && widget->type == WWT_EDITBOX) {
+			this->SetFocusedWidget(widget_index);
+			break;
+		}
+
+		/* Next widget index */
+		widget_index++;
+		if (widget_index == this->nested_array_size) {
+			widget_index = 0;
+		}
+	}
+}
+
+/**
  * Sets the enabled/disabled status of a list of widgets.
  * By default, widgets are enabled.
  * On certain conditions, they have to be disabled.
@@ -1915,6 +1945,12 @@
 		if (_focused_window->OnKeyPress(key, keycode) == Window::ES_HANDLED) return;
 	}
 
+	/* Focus next edit widget in the focused widget on ctrl + tab */
+	if (keycode == (WKC_CTRL | WKC_TAB) && _focused_window != NULL) {
+		_focused_window->FocusNextEditWidget();
+		return;
+	}
+
 	/* Call the event, start with the uppermost window, but ignore the toolbar. */
 	Window *w;
 	FOR_ALL_WINDOWS_FROM_FRONT(w) {
Index: src/window_gui.h
===================================================================
--- src/window_gui.h	(revision 18684)
+++ src/window_gui.h	(working copy)
@@ -521,6 +521,7 @@
 
 	void UnfocusFocusedWidget();
 	bool SetFocusedWidget(byte widget_index);
+	void FocusNextEditWidget();
 
 	void HandleButtonClick(byte widget);