diff -r c7dcf4c3c76f src/lang/english.txt
--- a/src/lang/english.txt	Sun Nov 02 13:26:18 2008 +0100
+++ b/src/lang/english.txt	Sun Nov 02 14:05:54 2008 +0100
@@ -1218,6 +1218,13 @@
 STR_CONFIG_PATCHES_STATIONS                                     :{BLACK}Stations
 STR_CONFIG_PATCHES_ECONOMY                                      :{BLACK}Economy
 STR_CONFIG_PATCHES_AI                                           :{BLACK}Competitors
+
+STR_TREEVIEW_USER_INTERFACE                                     :{ORANGE}User interface
+STR_TREEVIEW_CONSTRUCTION                                       :{ORANGE}Construction
+STR_TREEVIEW_VEHICLES                                           :{ORANGE}Vehicles
+STR_TREEVIEW_STATIONS                                           :{ORANGE}Stations
+STR_TREEVIEW_ECONOMY                                            :{ORANGE}Economy
+STR_TREEVIEW_COMPETITORS                                        :{ORANGE}Competitors
 
 STR_CONFIG_PATCHES_DISABLED                                     :disabled
 STR_CONFIG_PATCHES_INT32                                        :{NUM}
diff -r c7dcf4c3c76f src/settings_gui.cpp
--- a/src/settings_gui.cpp	Sun Nov 02 13:26:18 2008 +0100
+++ b/src/settings_gui.cpp	Sun Nov 02 14:05:54 2008 +0100
@@ -1052,7 +1052,8 @@
 	DrawString(x + TREE_PATCH_TEXT_OFFSET, y, (sdb->str) + disabled, TC_FROMSTRING);
 }
 
-static const char *_patches_ui[] = {
+/** Tree fields of the User interface section */
+static TreeField _treeview_ui_fields[] = {
 	"gui.vehicle_speed",
 	"gui.status_long_date",
 	"gui.show_finances",
@@ -1084,8 +1085,13 @@
 	"gui.always_build_infrastructure",
 	"gui.show_track_reservation",
 };
+/** User interface treeview section */
+static TreeSection _treeview_ui = TreeSection(STR_TREEVIEW_USER_INTERFACE,
+						_treeview_ui_fields,
+						lengthof(_treeview_ui_fields));
 
-static const char *_patches_construction[] = {
+/** Tree fields of the Construction section */
+static TreeField _treeview_construction_fields[] = {
 	"construction.build_on_slopes",
 	"construction.autoslope",
 	"construction.extra_dynamite",
@@ -1099,8 +1105,13 @@
 	"gui.default_signal_type",
 	"gui.cycle_signal_types",
 };
+/** Construction treeview section */
+static TreeSection _treeview_construction = TreeSection(STR_TREEVIEW_CONSTRUCTION,
+						_treeview_construction_fields,
+						lengthof(_treeview_construction_fields));
 
-static const char *_patches_stations[] = {
+/** Tree fields of the Stations section */
+static TreeField _treeview_stations_fields[] = {
 	"station.join_stations",
 	"order.improved_load",
 	"order.selectgoods",
@@ -1114,8 +1125,13 @@
 	"station.adjacent_stations",
 	"economy.station_noise_level",
 };
+/** Stations treeview section */
+static TreeSection _treeview_stations = TreeSection(STR_TREEVIEW_STATIONS,
+						_treeview_stations_fields,
+						lengthof(_treeview_stations_fields));
 
-static const char *_patches_economy[] = {
+/** Tree fields of the Economy section */
+static TreeField _treeview_economy_fields[] = {
 	"economy.inflation",
 	"construction.raw_industry_construction",
 	"economy.multiple_industry_per_town",
@@ -1133,8 +1149,13 @@
 	"economy.larger_towns",
 	"economy.initial_city_size",
 };
+/** Economy treeview section */
+static TreeSection _treeview_economy = TreeSection(STR_TREEVIEW_ECONOMY,
+						_treeview_economy_fields,
+						lengthof(_treeview_economy_fields));
 
-static const char *_patches_ai[] = {
+/** Tree fields of the Competitors section */
+static TreeField _treeview_competitors_fields[] = {
 	"ai.ainew_active",
 	"ai.ai_in_multiplayer",
 	"ai.ai_disable_veh_train",
@@ -1142,8 +1163,13 @@
 	"ai.ai_disable_veh_aircraft",
 	"ai.ai_disable_veh_ship",
 };
+/** Competitors treeview section */
+static TreeSection _treeview_competitors = TreeSection(STR_TREEVIEW_COMPETITORS,
+						_treeview_competitors_fields,
+						lengthof(_treeview_competitors_fields));
 
-static const char *_patches_vehicles[] = {
+/** Tree fields of the Vehicles section */
+static TreeField _treeview_vehicles_fields[] = {
 	"vehicle.realistic_acceleration",
 	"pf.forbid_90_deg",
 	"vehicle.mammoth_trains",
@@ -1176,6 +1202,24 @@
 	"order.timetabling",
 	"vehicle.dynamic_engines",
 };
+/** Vehicles treeview section */
+static TreeSection _treeview_vehicles = TreeSection(STR_TREEVIEW_VEHICLES,
+						_treeview_vehicles_fields,
+						lengthof(_treeview_vehicles_fields));
+
+/** Tree fields of the root section */
+static TreeField _treeview_fields[] = {
+	TreeField(&_treeview_ui),
+	TreeField(&_treeview_construction),
+	TreeField(&_treeview_vehicles),
+	TreeField(&_treeview_stations),
+	TreeField(&_treeview_economy),
+	TreeField(&_treeview_competitors)
+};
+/** Root treeview section */
+static TreeSection _treeview = TreeSection(STR_NULL,
+						_treeview_fields,
+						lengthof(_treeview_fields));
 
 /** Data structure describing a single patch in a tab */
 struct PatchEntry {