diff --git a/binaries/data/mods/official/gui/test/7_atlas.xml b/binaries/data/mods/official/gui/test/7_atlas.xml
index 33ab3ccb6c..9a330a48d5 100644
--- a/binaries/data/mods/official/gui/test/7_atlas.xml
+++ b/binaries/data/mods/official/gui/test/7_atlas.xml
@@ -44,9 +44,15 @@
 			<!-- MAP CREATOR SECTION MENU -->
 			<object type="empty" name="atlas_left_pane_section_map" size="0 0 100% 100%" z="1" hidden="true">
 				<!-- MAP SIZE SETTINGS -->
-				<object type="input" name="atlas_left_pane_section_map_tile_height_input_box" sprite="atlas_input_box" style="atlas_label_text" hidden="false">
+				<object type="text" name="atlas_left_pane_section_map_size_label" style="atlas_label_text" hidden="false">Size:
 					<action on="Load"><![CDATA[
-						setSizeArray("atlas_left_pane_section_map_tile_height_input_box", atlasCoord[ATLAS_LEFT_PANE_SECTION_MAP_TILE_HEIGHT_INPUT_BOX], left_screen, top_screen, left_screen, top_screen);
+						setSizeArray("atlas_left_pane_section_map_size_label", atlasCoord[ATLAS_LEFT_PANE_SECTION_MAP_SIZE_LABEL], left_screen, top_screen, left_screen, top_screen);
+					]]></action>
+				</object>
+				<object type="input" name="atlas_left_pane_section_map_tile_width_input_box" sprite="atlas_input_box" style="atlas_label_text" hidden="false">
+					<action on="Load"><![CDATA[
+						setSizeArray("atlas_left_pane_section_map_tile_width_input_box", atlasCoord[ATLAS_LEFT_PANE_SECTION_MAP_TILE_WIDTH_INPUT_BOX], left_screen, top_screen, left_screen, top_screen);
+						GUIObjectSetCaption("atlas_left_pane_section_map_tile_width_input_box",200);
 					]]></action>
 				</object>
 				<object type="text" name="atlas_left_pane_section_map_tile_x" style="atlas_label_text" hidden="false">X
@@ -54,14 +60,10 @@
 						setSizeArray("atlas_left_pane_section_map_tile_x", atlasCoord[ATLAS_LEFT_PANE_SECTION_MAP_TILE_X], left_screen, top_screen, left_screen, top_screen);
 					]]></action>
 				</object>
-				<object type="input" name="atlas_left_pane_section_map_tile_width_input_box" sprite="atlas_input_box" style="atlas_label_text" hidden="false">
+				<object type="input" name="atlas_left_pane_section_map_tile_height_input_box" sprite="atlas_input_box" style="atlas_label_text" hidden="false">
 					<action on="Load"><![CDATA[
-						setSizeArray("atlas_left_pane_section_map_tile_width_input_box", atlasCoord[ATLAS_LEFT_PANE_SECTION_MAP_TILE_WIDTH_INPUT_BOX], left_screen, top_screen, left_screen, top_screen);
-					]]></action>
-				</object>
-				<object type="text" name="atlas_left_pane_section_map_size_label" style="atlas_label_text" hidden="false">Size:
-					<action on="Load"><![CDATA[
-						setSizeArray("atlas_left_pane_section_map_size_label", atlasCoord[ATLAS_LEFT_PANE_SECTION_MAP_SIZE_LABEL], left_screen, top_screen, left_screen, top_screen);
+						setSizeArray("atlas_left_pane_section_map_tile_height_input_box", atlasCoord[ATLAS_LEFT_PANE_SECTION_MAP_TILE_HEIGHT_INPUT_BOX], left_screen, top_screen, left_screen, top_screen);
+						GUIObjectSetCaption("atlas_left_pane_section_map_tile_height_input_box",200);
 					]]></action>
 				</object>
 				<object type="empty" name="atlas_left_pane_section_map_size_radio" size="0 0 100% 100%" z="1" hidden="false">
@@ -69,21 +71,37 @@
 						<action on="Load"><![CDATA[
 							setSizeArray("atlas_left_pane_section_map_size_button_small", atlasCoord[ATLAS_LEFT_PANE_SECTION_MAP_SIZE_BUTTON_SMALL], left_screen, top_screen, left_screen, top_screen);
 						]]></action>
+						<action on="Press"><![CDATA[
+							GUIObjectSetCaption("atlas_left_pane_section_map_tile_width_input_box", 100);
+							GUIObjectSetCaption("atlas_left_pane_section_map_tile_height_input_box", 100);
+						]]></action>
 					</object>
 					<object type="button" name="atlas_left_pane_section_map_size_button_medium" style="atlas_button" font="tahoma9" hidden="false">Medium
 						<action on="Load"><![CDATA[
 							setSizeArray("atlas_left_pane_section_map_size_button_medium", atlasCoord[ATLAS_LEFT_PANE_SECTION_MAP_SIZE_BUTTON_MEDIUM], left_screen, top_screen, left_screen, top_screen);
 						]]></action>
+						<action on="Press"><![CDATA[
+							GUIObjectSetCaption("atlas_left_pane_section_map_tile_width_input_box", 200);
+							GUIObjectSetCaption("atlas_left_pane_section_map_tile_height_input_box", 200);
+						]]></action>
 					</object>
 					<object type="button" name="atlas_left_pane_section_map_size_button_large" style="atlas_button" hidden="false">Large
 						<action on="Load"><![CDATA[
 							setSizeArray("atlas_left_pane_section_map_size_button_large", atlasCoord[ATLAS_LEFT_PANE_SECTION_MAP_SIZE_BUTTON_LARGE], left_screen, top_screen, left_screen, top_screen);
 						]]></action>
+						<action on="Press"><![CDATA[
+							GUIObjectSetCaption("atlas_left_pane_section_map_tile_width_input_box", 300);
+							GUIObjectSetCaption("atlas_left_pane_section_map_tile_height_input_box", 300);
+						]]></action>
 					</object>
 					<object type="button" name="atlas_left_pane_section_map_size_button_huge" style="atlas_button" hidden="false">Huge
 						<action on="Load"><![CDATA[
 							setSizeArray("atlas_left_pane_section_map_size_button_huge", atlasCoord[ATLAS_LEFT_PANE_SECTION_MAP_SIZE_BUTTON_HUGE], left_screen, top_screen, left_screen, top_screen);
 						]]></action>
+						<action on="Press"><![CDATA[
+							GUIObjectSetCaption("atlas_left_pane_section_map_tile_width_input_box", 400);
+							GUIObjectSetCaption("atlas_left_pane_section_map_tile_height_input_box", 400);
+						]]></action>
 					</object>
 				</object>
 				<object type="text" name="atlas_left_pane_section_map_size_hr" sprite="atlas_hline" hidden="false">
@@ -100,17 +118,24 @@
 				<object type="input" name="atlas_left_pane_section_map_settings_player_input_box" sprite="atlas_input_box" style="atlas_label_text" hidden="false">
 					<action on="Load"><![CDATA[
 						setSizeArray("atlas_left_pane_section_map_settings_player_input_box", atlasCoord[ATLAS_LEFT_PANE_SECTION_MAP_SETTINGS_PLAYER_INPUT_BOX], left_screen, mid_screen, left_screen, mid_screen);
+						GUIObjectSetCaption("atlas_left_pane_section_map_settings_player_input_box", 4);
 					]]></action>
 				</object>
 				<object type="button" name="atlas_left_pane_section_map_settings_player_input_box_up" sprite="atlas_sheet_updown_button" cell_id="0" hidden="false">
 					<action on="Load"><![CDATA[
 						setSizeArray("atlas_left_pane_section_map_settings_player_input_box_up", atlasCoord[ATLAS_LEFT_PANE_SECTION_MAP_SETTINGS_PLAYER_INPUT_BOX_UP], left_screen, mid_screen, left_screen, mid_screen);
 					]]></action>
+					<action on="Press"><![CDATA[
+						GUIObjectModifyCaption("atlas_left_pane_section_map_settings_player_input_box", 1);
+					]]></action>
 				</object>
 				<object type="button" name="atlas_left_pane_section_map_settings_player_input_box_dn" sprite="atlas_sheet_updown_button" cell_id="1" hidden="false">
 					<action on="Load"><![CDATA[
 						setSizeArray("atlas_left_pane_section_map_settings_player_input_box_dn", atlasCoord[ATLAS_LEFT_PANE_SECTION_MAP_SETTINGS_PLAYER_INPUT_BOX_DN], left_screen, mid_screen, left_screen, mid_screen);
 					]]></action>
+					<action on="Press"><![CDATA[
+						GUIObjectModifyCaption("atlas_left_pane_section_map_settings_player_input_box", -1);
+					]]></action>
 				</object>
 				<object type="text" name="atlas_left_pane_section_map_settings_settlement_label" style="atlas_label_text" hidden="false">Settlements:
 					<action on="Load"><![CDATA[
@@ -120,17 +145,24 @@
 				<object type="input" name="atlas_left_pane_section_map_settings_settlement_input_box" sprite="atlas_input_box" style="atlas_label_text" hidden="false">
 					<action on="Load"><![CDATA[
 						setSizeArray("atlas_left_pane_section_map_settings_settlement_input_box", atlasCoord[ATLAS_LEFT_PANE_SECTION_MAP_SETTINGS_SETTLEMENT_INPUT_BOX], left_screen, mid_screen, left_screen, mid_screen);
+						GUIObjectSetCaption("atlas_left_pane_section_map_settings_settlement_input_box", 2);
 					]]></action>
 				</object>
 				<object type="button" name="atlas_left_pane_section_map_settings_settlement_input_box_up" sprite="atlas_sheet_updown_button" cell_id="0" hidden="false">
 					<action on="Load"><![CDATA[
 						setSizeArray("atlas_left_pane_section_map_settings_settlement_input_box_up", atlasCoord[ATLAS_LEFT_PANE_SECTION_MAP_SETTINGS_SETTLEMENT_INPUT_BOX_UP], left_screen, mid_screen, left_screen, mid_screen);
 					]]></action>
+					<action on="Press"><![CDATA[
+						GUIObjectModifyCaption("atlas_left_pane_section_map_settings_settlement_input_box", 1);
+					]]></action>
 				</object>
 				<object type="button" name="atlas_left_pane_section_map_settings_settlement_input_box_dn" sprite="atlas_sheet_updown_button" cell_id="1" hidden="false">
 					<action on="Load"><![CDATA[
 						setSizeArray("atlas_left_pane_section_map_settings_settlement_input_box_dn", atlasCoord[ATLAS_LEFT_PANE_SECTION_MAP_SETTINGS_SETTLEMENT_INPUT_BOX_DN], left_screen, mid_screen, left_screen, mid_screen);
 					]]></action>
+					<action on="Press"><![CDATA[
+						GUIObjectModifyCaption("atlas_left_pane_section_map_settings_settlement_input_box", -1);
+					]]></action>
 				</object>
 				<object type="text" name="atlas_left_pane_section_map_settings_resources_label" style="atlas_label_text" hidden="false">Resources:
 					<action on="Load"><![CDATA[
@@ -141,6 +173,7 @@
 				<object type="input" name="atlas_left_pane_section_map_settings_resources_combo_box" sprite="atlas_input_box" style="atlas_label_text" hidden="false">
 					<action on="Load"><![CDATA[
 						setSizeArray("atlas_left_pane_section_map_settings_resources_combo_box", atlasCoord[ATLAS_LEFT_PANE_SECTION_MAP_SETTINGS_RESOURCES_COMBO_BOX], left_screen, mid_screen, left_screen, mid_screen);
+						GUIObjectSetCaption("atlas_left_pane_section_map_settings_resources_combo_box", "Normal");
 					]]></action>
 				</object>
 				<!-- GENERATE -->
@@ -178,6 +211,21 @@
 
 			<!-- TERRAIN EDITOR SECTION MENU -->
 			<object type="empty" name="atlas_left_pane_section_terrain" size="0 0 100% 100%" z="1" hidden="true">
+				<object type="button" name="atlas_left_pane_section_terrain_elevation_modify_button" style="atlas_button" hidden="false">Modify
+					<action on="Load"><![CDATA[
+						setSizeArray("atlas_left_pane_section_terrain_elevation_modify_button", atlasCoord[ATLAS_LEFT_PANE_SECTION_TERRAIN_ELEVATION_MODIFY_BUTTON], left_screen, top_screen, left_screen, top_screen);
+					]]></action>
+				</object>
+				<object type="button" name="atlas_left_pane_section_terrain_elevation_smooth_button" style="atlas_button" hidden="false">Smooth
+					<action on="Load"><![CDATA[
+						setSizeArray("atlas_left_pane_section_terrain_elevation_smooth_button", atlasCoord[ATLAS_LEFT_PANE_SECTION_TERRAIN_ELEVATION_SMOOTH_BUTTON], left_screen, top_screen, left_screen, top_screen);
+					]]></action>
+				</object>
+				<object type="button" name="atlas_left_pane_section_terrain_elevation_sample_button" style="atlas_button" hidden="false">Sample
+					<action on="Load"><![CDATA[
+						setSizeArray("atlas_left_pane_section_terrain_elevation_sample_button", atlasCoord[ATLAS_LEFT_PANE_SECTION_TERRAIN_ELEVATION_SAMPLE_BUTTON], left_screen, top_screen, left_screen, top_screen);
+					]]></action>
+				</object>
 			</object>
 		</object>
 
diff --git a/binaries/data/mods/official/gui/test/functions_atlas.js b/binaries/data/mods/official/gui/test/functions_atlas.js
index 9b6437aacb..339e84265f 100755
--- a/binaries/data/mods/official/gui/test/functions_atlas.js
+++ b/binaries/data/mods/official/gui/test/functions_atlas.js
@@ -262,7 +262,7 @@ function initAtlas()
 
 	// Height input box for map size.
 	ATLAS_LEFT_PANE_SECTION_MAP_TILE_HEIGHT_INPUT_BOX		= addSizeArrayWH(atlasCoord, atlasCoord_Last,
-		30,
+		58,
 		14
 	); atlasCoord_Last 			= addSizeArrayXY(atlasCoord, atlasCoord_Last,
 		atlasCoord[ATLAS_LEFT_PANE_SECTION_HEADING_2].x+atlasCoord[ATLAS_LEFT_PANE_SECTION_HEADING_2].width-atlasCoord[ATLAS_LEFT_PANE_SECTION_MAP_TILE_HEIGHT_INPUT_BOX].width-ATLAS_LEFT_PANE_SECTION.RMARGIN,
@@ -496,6 +496,40 @@ function initAtlas()
 		atlasCoord[ATLAS_LEFT_PANE_SECTION_GENERATE_BORDER].x+ATLAS_LEFT_PANE_SECTION_GENERATE_SPAN,
 		atlasCoord[ATLAS_LEFT_PANE_SECTION_GENERATE_BORDER].y+ATLAS_LEFT_PANE_SECTION_GENERATE_SPAN
 	);
+
+	// ============================================= TERRAIN EDITOR SECTION MENU ===============================================
+
+	// ============================================= TERRAIN EDITOR: EDIT ELEVATION ===============================================
+
+	ATLAS_LEFT_PANE_SECTION_TERRAIN_ELEVATION_BUTTON_SPAN = 10;
+
+	// Modify button.
+	ATLAS_LEFT_PANE_SECTION_TERRAIN_ELEVATION_MODIFY_BUTTON		= addSizeArrayWH(atlasCoord, atlasCoord_Last,
+		50,
+		15
+	); atlasCoord_Last 			= addSizeArrayXY(atlasCoord, atlasCoord_Last,
+		atlasCoord[ATLAS_LEFT_PANE_SECTION_HEADING_2].x+ATLAS_LEFT_PANE_SECTION.LMARGIN,
+		atlasCoord[ATLAS_LEFT_PANE_SECTION_HEADING_2].y+atlasCoord[ATLAS_LEFT_PANE_SECTION_HEADING_2].height+ATLAS_LEFT_PANE_SECTION.TMARGIN
+	);
+
+	// Smooth button.
+	ATLAS_LEFT_PANE_SECTION_TERRAIN_ELEVATION_SMOOTH_BUTTON		= addSizeArrayWH(atlasCoord, atlasCoord_Last,
+		atlasCoord[ATLAS_LEFT_PANE_SECTION_TERRAIN_ELEVATION_MODIFY_BUTTON].width,
+		atlasCoord[ATLAS_LEFT_PANE_SECTION_TERRAIN_ELEVATION_MODIFY_BUTTON].height
+	); atlasCoord_Last 			= addSizeArrayXY(atlasCoord, atlasCoord_Last,
+		atlasCoord[ATLAS_LEFT_PANE_SECTION_TERRAIN_ELEVATION_MODIFY_BUTTON].x+atlasCoord[ATLAS_LEFT_PANE_SECTION_TERRAIN_ELEVATION_MODIFY_BUTTON].width+ATLAS_LEFT_PANE_SECTION_TERRAIN_ELEVATION_BUTTON_SPAN,
+		atlasCoord[ATLAS_LEFT_PANE_SECTION_TERRAIN_ELEVATION_MODIFY_BUTTON].y
+	);
+
+	// Sample button.
+	ATLAS_LEFT_PANE_SECTION_TERRAIN_ELEVATION_SAMPLE_BUTTON		= addSizeArrayWH(atlasCoord, atlasCoord_Last,
+		atlasCoord[ATLAS_LEFT_PANE_SECTION_TERRAIN_ELEVATION_MODIFY_BUTTON].width,
+		atlasCoord[ATLAS_LEFT_PANE_SECTION_TERRAIN_ELEVATION_MODIFY_BUTTON].height
+	); atlasCoord_Last 			= addSizeArrayXY(atlasCoord, atlasCoord_Last,
+		atlasCoord[ATLAS_LEFT_PANE_SECTION_TERRAIN_ELEVATION_SMOOTH_BUTTON].x+atlasCoord[ATLAS_LEFT_PANE_SECTION_TERRAIN_ELEVATION_SMOOTH_BUTTON].width+ATLAS_LEFT_PANE_SECTION_TERRAIN_ELEVATION_BUTTON_SPAN,
+		atlasCoord[ATLAS_LEFT_PANE_SECTION_TERRAIN_ELEVATION_MODIFY_BUTTON].y
+	);
+
 }
 
 // ====================================================================
@@ -615,4 +649,3 @@ function atlasOpenSectionMenu(atlasMenuName)
 }
 
 // ====================================================================
-
diff --git a/binaries/data/mods/official/gui/test/functions_utility_object.js b/binaries/data/mods/official/gui/test/functions_utility_object.js
index 19a8384d40..83eadaf131 100755
--- a/binaries/data/mods/official/gui/test/functions_utility_object.js
+++ b/binaries/data/mods/official/gui/test/functions_utility_object.js
@@ -43,3 +43,25 @@ function GUIObjectRenameandReveal(objectName, objectCaption)
 
 // ====================================================================
 
+function GUIObjectModifyCaption(objectName, objectModifier)
+{
+	// Adds a modifier to a GUI object's caption (eg increase a number by 1).
+	// Obviously don't use this unless you're sure the caption contains a number.
+
+        // Get our GUI object
+        var GUIObject = getGUIObjectByName(objectName);
+
+	GUIObject.caption = parseInt(GUIObject.caption) + parseInt(objectModifier);
+}
+
+// ====================================================================
+
+function GUIObjectSetCaption(objectName, objectCaption)
+{
+	// Sets an object's caption to the specified value.
+
+        // Get our GUI object
+        var GUIObject = getGUIObjectByName(objectName);
+
+	GUIObject.caption = objectCaption;
+}
\ No newline at end of file