diff --git a/data/language/english_uk.txt b/data/language/english_uk.txt
index b0c6413336..24a46afabb 100644
--- a/data/language/english_uk.txt
+++ b/data/language/english_uk.txt
@@ -2687,11 +2687,11 @@ STR_2681    :???
 STR_2682    :???
 STR_2683    :???
 STR_2684    :???
-STR_2685    :???
-STR_2686    :???
-STR_2687    :???
-STR_2688    :???
-STR_2689    :???
+STR_2685    :Simplex Noise Parameters
+STR_2686    :{WINDOW_COLOUR_2}Low:
+STR_2687    :{WINDOW_COLOUR_2}High:
+STR_2688    :{WINDOW_COLOUR_2}Base Frequency:
+STR_2689    :{WINDOW_COLOUR_2}Octaves:
 STR_2690    :Map Generation
 STR_2691    :{WINDOW_COLOUR_2}Base height:
 STR_2692    :{WINDOW_COLOUR_2}Water level:
diff --git a/data/language/english_us.txt b/data/language/english_us.txt
index 61dff70d62..a87505fb25 100644
--- a/data/language/english_us.txt
+++ b/data/language/english_us.txt
@@ -2687,11 +2687,11 @@ STR_2681    :???
 STR_2682    :???
 STR_2683    :???
 STR_2684    :???
-STR_2685    :???
-STR_2686    :???
-STR_2687    :???
-STR_2688    :???
-STR_2689    :???
+STR_2685    :Simplex Noise Parameters
+STR_2686    :{WINDOW_COLOUR_2}Low:
+STR_2687    :{WINDOW_COLOUR_2}High:
+STR_2688    :{WINDOW_COLOUR_2}Base Frequency:
+STR_2689    :{WINDOW_COLOUR_2}Octaves:
 STR_2690    :Map Generation
 STR_2691    :{WINDOW_COLOUR_2}Base height:
 STR_2692    :{WINDOW_COLOUR_2}Water level:
@@ -2702,13 +2702,13 @@ STR_2696    :Place trees
 STR_2697    :???
 STR_2698    :???
 STR_2699    :???
-STR_2700    :Simplex Noise Parameters
-STR_2701    :{WINDOW_COLOUR_2}Low:
-STR_2702    :{WINDOW_COLOUR_2}High:
-STR_2703    :{WINDOW_COLOUR_2}Base Frequency:
-STR_2704    :{WINDOW_COLOUR_2}Octaves:
-STR_2705    :???
-STR_2706    :???
+STR_2700    :Autosave frequency
+STR_2701    :Every week
+STR_2702    :Every 2 weeks
+STR_2703    :Every month
+STR_2704    :Every 4 months
+STR_2705    :Every year
+STR_2706    :Never
 STR_2707    :Open new window
 STR_2708    :{WINDOW_COLOUR_1}Are you sure you want to overwrite {STRINGID}?
 STR_2709    :Overwrite
diff --git a/src/windows/mapgen.c b/src/windows/mapgen.c
index 712f38b1ff..18f75088e6 100644
--- a/src/windows/mapgen.c
+++ b/src/windows/mapgen.c
@@ -139,7 +139,7 @@ static rct_widget window_mapgen_simplex_widgets[] = {
 
 	{ WWT_DROPDOWN_BUTTON,	1,	104,	198,	52,		63,		2694,					STR_NONE },
 
-	{ WWT_12,				1,	4,		141,	52,		63,		2700,					STR_NONE },
+	{ WWT_12,				1,	4,		141,	52,		63,		2685,					STR_NONE },
 
 	{ WWT_SPINNER,			1,	104,	198,	70,		81,		STR_NONE,				STR_NONE },
 	{ WWT_DROPDOWN_BUTTON,	1,	187,	197,	71,		75,		STR_NUMERIC_UP,			STR_NONE },
@@ -946,10 +946,10 @@ static void window_mapgen_simplex_paint()
 	window_draw_widgets(w, dpi);
 	window_mapgen_draw_tab_images(dpi, w);
 
-	gfx_draw_string_left(dpi, 2701, 0, 0, w->x + 5, w->y + w->widgets[WIDX_SIMPLEX_LOW].top + 1);
-	gfx_draw_string_left(dpi, 2702, 0, 0, w->x + 5, w->y + w->widgets[WIDX_SIMPLEX_HIGH].top + 1);
-	gfx_draw_string_left(dpi, 2703, 0, 0, w->x + 5, w->y + w->widgets[WIDX_SIMPLEX_BASE_FREQ].top + 1);
-	gfx_draw_string_left(dpi, 2704, 0, 0, w->x + 5, w->y + w->widgets[WIDX_SIMPLEX_OCTAVES].top + 1);
+	gfx_draw_string_left(dpi, 2686, 0, 0, w->x + 5, w->y + w->widgets[WIDX_SIMPLEX_LOW].top + 1);
+	gfx_draw_string_left(dpi, 2687, 0, 0, w->x + 5, w->y + w->widgets[WIDX_SIMPLEX_HIGH].top + 1);
+	gfx_draw_string_left(dpi, 2688, 0, 0, w->x + 5, w->y + w->widgets[WIDX_SIMPLEX_BASE_FREQ].top + 1);
+	gfx_draw_string_left(dpi, 2689, 0, 0, w->x + 5, w->y + w->widgets[WIDX_SIMPLEX_OCTAVES].top + 1);
 	gfx_draw_string_left(dpi, STR_MAP_SIZE, 0, 0, w->x + 5, w->y + w->widgets[WIDX_SIMPLEX_MAP_SIZE].top + 1);
 	gfx_draw_string_left(dpi, 2692, 0, 0, w->x + 5, w->y + w->widgets[WIDX_SIMPLEX_WATER_LEVEL].top + 1);