diff --git a/cybersyn/TODO b/cybersyn/TODO
index a2dd21b..3756855 100644
--- a/cybersyn/TODO
+++ b/cybersyn/TODO
@@ -1,6 +1,7 @@
-finish wagon manifest
 close gui when the combinator is destroyed
+play close sound when gui is closed
 improve localization
 support space elevator
 do hardcore testing
 optimizations?
+models & art
diff --git a/cybersyn/locale/en/base.cfg b/cybersyn/locale/en/base.cfg
index 51b9ce3..1b6e44b 100644
--- a/cybersyn/locale/en/base.cfg
+++ b/cybersyn/locale/en/base.cfg
@@ -35,7 +35,7 @@ cybersyn-request-threshold=Request threshold
 cybersyn-locked-slots=Locked slots per cargo wagon
 
 [cybersyn-messages]
-missing-trains=No trains available to make a delivery from station __2__ to station __1__
+missing-trains=No trains available to make a delivery from __2__ to __1__
 lost-train=A train has become lost
 nonempty-train=A train has parked in a depot while still containing items; it cannot be dispatched until it is empty
 
diff --git a/cybersyn/scripts/central-planning.lua b/cybersyn/scripts/central-planning.lua
index cb38061..139b3cc 100644
--- a/cybersyn/scripts/central-planning.lua
+++ b/cybersyn/scripts/central-planning.lua
@@ -74,33 +74,6 @@ local function get_signals(station)
 	end
 end
 
----@param depot Depot
-local function set_depot_signals(depot)
-	local comb = depot.entity_comb
-	if depot.network_name and comb.valid and (comb.status == defines.entity_status.working or comb.status == defines.entity_status.low_power) then
-		depot.priority = 0
-		depot.network_flag = 1
-		local signals = comb.get_merged_signals(defines.circuit_connector_id.combinator_input)
-		if signals then
-			for k, v in pairs(signals) do
-				local item_name = v.signal.name
-				local item_count = v.count
-				if item_name then
-					if item_name == SIGNAL_PRIORITY then
-						depot.priority = item_count
-					end
-					if item_name == depot.network_name then
-						depot.network_flag = item_count
-					end
-				end
-			end
-		end
-	else
-		depot.priority = 0
-		depot.network_flag = 0
-	end
-end
-
 ---@param map_data MapData
 ---@param comb LuaEntity
 ---@param signals ConstantCombinatorParameters[]?
@@ -170,13 +143,6 @@ local function get_stop_dist(stop0, stop1)
 end
 
 
----@param station Station
----@param layout_id uint
-local function station_accepts_layout(station, layout_id)
-	return station.is_all or station.accepted_layouts[layout_id]
-end
-
-
 
 ---@param map_data MapData
 ---@param r_station_id uint
@@ -195,38 +161,42 @@ local function get_valid_train(map_data, r_station_id, p_station_id, item_type)
 		return nil, INF
 	end
 
-	local best_train = nil
+	---@type Depot|nil
+	local best_depot = nil
 	local best_dist = INF
 	local valid_train_exists = false
 
 	local is_fluid = item_type == "fluid"
-	for depot_id, train_id in pairs(map_data.trains_available[network_name]) do
-		local depot = map_data.depots[depot_id]
-		local train = map_data.trains[train_id]
-		--check cargo capabilities
-		--check layout validity for both stations
-		if
-		depot.network_name == network_name and
-		btest(netand, depot.network_flag)
-		((is_fluid and train.fluid_capacity > 0) or (not is_fluid and train.item_slot_capacity > 0)) and
-		station_accepts_layout(r_station, train.layout_id) and
-		station_accepts_layout(p_station, train.layout_id)
-		then
-			valid_train_exists = true
-			--check if exists valid path
-			--check if path is shortest so we prioritize locality
-			local d_to_p_dist = get_stop_dist(depot.entity_stop, p_station.entity_stop) - DEPOT_PRIORITY_MULT*depot.priority
+	local trains = map_data.trains_available[network_name]
+	if trains then
+		for train_id, depot_id in pairs(trains) do
+			local depot = map_data.depots[depot_id]
+			local train = map_data.trains[train_id]
+			local layout_id = train.layout_id
+			--check cargo capabilities
+			--check layout validity for both stations
+			if
+			btest(netand, depot.network_flag) and
+			((is_fluid and train.fluid_capacity > 0) or (not is_fluid and train.item_slot_capacity > 0)) and
+			(r_station.is_all or r_station.accepted_layouts[layout_id]) and
+			(p_station.is_all or p_station.accepted_layouts[layout_id])
+			then
+				valid_train_exists = true
+				--check if exists valid path
+				--check if path is shortest so we prioritize locality
+				local d_to_p_dist = get_stop_dist(depot.entity_stop, p_station.entity_stop) - DEPOT_PRIORITY_MULT*depot.priority
 
-			local dist = d_to_p_dist
-			if dist < best_dist then
-				best_dist = dist
-				best_train = train
+				local dist = d_to_p_dist
+				if dist < best_dist then
+					best_dist = dist
+					best_depot = depot
+				end
 			end
 		end
 	end
 
 	if valid_train_exists then
-		return best_train, best_dist + p_to_r_dist
+		return best_depot, best_dist + p_to_r_dist
 	else
 		return nil, p_to_r_dist
 	end
@@ -236,13 +206,16 @@ end
 ---@param map_data MapData
 ---@param r_station_id uint
 ---@param p_station_id uint
----@param train Train
+---@param depot Depot
 ---@param primary_item_name string
 ---@param economy Economy
-local function send_train_between(map_data, r_station_id, p_station_id, train, primary_item_name, economy)
+local function send_train_between(map_data, r_station_id, p_station_id, depot, primary_item_name, economy)
 	--trains and stations expected to be of the same network
 	local r_station = map_data.stations[r_station_id]
 	local p_station = map_data.stations[p_station_id]
+	local train = map_data.trains[depot.available_train]
+	---@type string
+	local network_name = depot.network_name
 
 	local requests = {}
 	local manifest = {}
@@ -333,7 +306,7 @@ local function send_train_between(map_data, r_station_id, p_station_id, train, p
 		r_station.deliveries[item.name] = (r_station.deliveries[item.name] or 0) + item.count
 		p_station.deliveries[item.name] = (p_station.deliveries[item.name] or 0) - item.count
 
-		local item_network_name = (r_station.network_name and item.name + ":" + r_station.network_name) or item.name
+		local item_network_name = network_name..":"..item.name
 		local r_stations = economy.r_stations_all[item_network_name]
 		local p_stations = economy.p_stations_all[item_network_name]
 		for i, id in ipairs(r_stations) do
@@ -350,7 +323,7 @@ local function send_train_between(map_data, r_station_id, p_station_id, train, p
 		end
 	end
 
-	map_data.trains_available[train.entity.id] = nil
+	remove_available_train(map_data, depot)
 	train.status = STATUS_D_TO_P
 	train.p_station_id = p_station_id
 	train.r_station_id = r_station_id
@@ -375,8 +348,33 @@ function tick(map_data, mod_settings)
 	local p_stations_all = economy.p_stations_all
 	local all_names = {}
 
-	for depot_id, _ in pairs(map_data.trains_available) do
-		set_depot_signals(map_data.depots[depot_id])
+	for _, network in pairs(map_data.trains_available) do
+		for _, depot_id in pairs(network) do
+			local depot = map_data.depots[depot_id]
+			local comb = depot.entity_comb
+			if depot.network_name and comb.valid and (comb.status == defines.entity_status.working or comb.status == defines.entity_status.low_power) then
+				depot.priority = 0
+				depot.network_flag = 1
+				local signals = comb.get_merged_signals(defines.circuit_connector_id.combinator_input)
+				if signals then
+					for k, v in pairs(signals) do
+						local item_name = v.signal.name
+						local item_count = v.count
+						if item_name then
+							if item_name == SIGNAL_PRIORITY then
+								depot.priority = item_count
+							end
+							if item_name == depot.network_name then
+								depot.network_flag = item_count
+							end
+						end
+					end
+				end
+			else
+				depot.priority = 0
+				depot.network_flag = 0
+			end
+		end
 	end
 
 	for station_id, station in pairs(stations) do
@@ -420,23 +418,23 @@ function tick(map_data, mod_settings)
 					local r_threshold, p_threshold = get_thresholds(map_data, station, v.signal)
 
 					if -effective_item_count >= r_threshold then
-						local item_network_name = item_name + ":" + station.network_name
+						local item_network_name = station.network_name..":"..item_name
 						if r_stations_all[item_network_name] == nil then
 							r_stations_all[item_network_name] = {}
 							p_stations_all[item_network_name] = {}
 							all_names[#all_names + 1] = item_network_name
 							all_names[#all_names + 1] = v.signal
 						end
-						table.insert(r_stations_all[item_name], station_id)
+						table.insert(r_stations_all[item_network_name], station_id)
 					elseif effective_item_count >= p_threshold then
-						local item_network_name = item_name + ":" + station.network_name
+						local item_network_name = station.network_name..":"..item_name
 						if r_stations_all[item_network_name] == nil then
 							r_stations_all[item_network_name] = {}
 							p_stations_all[item_network_name] = {}
 							all_names[#all_names + 1] = item_network_name
 							all_names[#all_names + 1] = v.signal
 						end
-						table.insert(p_stations_all[item_name], station_id)
+						table.insert(p_stations_all[item_network_name], station_id)
 					end
 				end
 			end
@@ -464,18 +462,18 @@ function tick(map_data, mod_settings)
 					local r_station_id = table.remove(r_stations, i)
 
 					local best = 0
-					local best_train = nil
+					local best_depot = nil
 					local best_dist = INF
 					local highest_prior = -INF
 					local could_have_been_serviced = false
 					for j, p_station_id in ipairs(p_stations) do
-						local train, d = get_valid_train(map_data, r_station_id, p_station_id, item_type)
+						local depot, d = get_valid_train(map_data, r_station_id, p_station_id, item_type)
 						local prior = stations[p_station_id].priority
 						if prior > highest_prior or (prior == highest_prior and d < best_dist) then
-							if train then
+							if depot then
 								best = j
 								best_dist = d
-								best_train = train
+								best_depot = depot
 								highest_prior = prior
 							elseif d < INF then
 								could_have_been_serviced = true
@@ -483,8 +481,8 @@ function tick(map_data, mod_settings)
 							end
 						end
 					end
-					if best_train then
-						send_train_between(map_data, r_station_id, p_stations[best], best_train, item_name, economy)
+					if best_depot then
+						send_train_between(map_data, r_station_id, p_stations[best], best_depot, item_name, economy)
 					elseif could_have_been_serviced then
 						send_missing_train_alert_for_stops(stations[r_station_id].entity_stop, stations[p_stations[best]].entity_stop)
 					end
@@ -496,7 +494,7 @@ function tick(map_data, mod_settings)
 					local p_station_id = table.remove(p_stations, j)
 
 					local best = 0
-					local best_train = nil
+					local best_depot = nil
 					local lowest_tick = INF
 					local highest_prior = -INF
 					local could_have_been_serviced = false
@@ -504,10 +502,10 @@ function tick(map_data, mod_settings)
 						local r_station = stations[r_station_id]
 						local prior = r_station.priority
 						if prior > highest_prior or (prior == highest_prior and r_station.last_delivery_tick < lowest_tick) then
-							local train, d = get_valid_train(map_data, r_station_id, p_station_id, item_type)
-							if train then
+							local depot, d = get_valid_train(map_data, r_station_id, p_station_id, item_type)
+							if depot then
 								best = i
-								best_train = train
+								best_depot = depot
 								lowest_tick = r_station.last_delivery_tick
 								highest_prior = prior
 							elseif d < INF then
@@ -516,8 +514,8 @@ function tick(map_data, mod_settings)
 							end
 						end
 					end
-					if best_train then
-						send_train_between(map_data, r_stations[best], p_station_id, best_train, item_name, economy)
+					if best_depot then
+						send_train_between(map_data, r_stations[best], p_station_id, best_depot, item_name, economy)
 					elseif could_have_been_serviced then
 						send_missing_train_alert_for_stops(stations[r_stations[best]].entity_stop, stations[p_station_id].entity_stop)
 					end
diff --git a/cybersyn/scripts/global.lua b/cybersyn/scripts/global.lua
index f0a7d9e..88874ab 100644
--- a/cybersyn/scripts/global.lua
+++ b/cybersyn/scripts/global.lua
@@ -8,7 +8,7 @@
 ---@field public stations {[uint]: Station}
 ---@field public depots {[uint]: Depot}
 ---@field public trains {[uint]: Train}
----@field public trains_available {[string]: {[uint]: uint}}
+---@field public trains_available {[string]: {[uint]: uint}} --{[network_name]: {[train_id]: depot_id}}
 ---@field public layouts {[uint]: string}
 ---@field public layout_train_count {[uint]: int}
 ---@field public train_classes {[string]: TrainClass}
@@ -38,6 +38,7 @@
 ---@field public entity_comb LuaEntity
 ---@field public network_name string?
 ---@field public network_flag int --transient
+---@field public available_train uint?
 
 ---@class Train
 ---@field public entity LuaTrain
@@ -45,6 +46,7 @@
 ---@field public item_slot_capacity int
 ---@field public fluid_capacity int
 ---@field public depot_name string
+---@field public depot Depot?
 ---@field public status int
 ---@field public p_station_id uint
 ---@field public r_station_id uint
diff --git a/cybersyn/scripts/gui.lua b/cybersyn/scripts/gui.lua
index bb6173c..edb05df 100644
--- a/cybersyn/scripts/gui.lua
+++ b/cybersyn/scripts/gui.lua
@@ -75,7 +75,7 @@ local window = flib_gui.build(rootgui, {
 				}},
 				---choose-elem-button
 				{type="line", style_mods={top_padding=10}},
-				{type="label", name="network_label", style="heading_3_label", caption={"cybersyn-gui.network"}, style_mods={top_padding=7}},
+				{type="label", name="network_label", ref={"network_label"}, style="heading_3_label", caption={"cybersyn-gui.network"}, style_mods={top_padding=7}},
 				{type="flow", name="bottom", direction="horizontal", children={
 					{type="choose-elem-button", name="network", style="slot_button_in_shallow_frame", ref={"network"}, elem_type="signal", signal=control.first_signal, style_mods={bottom_margin=2, right_margin=6}, actions={
 						on_elem_changed={"choose-elem-button", comb.unit_number}
@@ -94,6 +94,7 @@ local window = flib_gui.build(rootgui, {
 	window.titlebar.drag_target = window.main_window
 	window.main_window.force_auto_center()
 	window.network.visible = selected_index == 1 or selected_index == 3
+	window.network_label.visible = selected_index == 1 or selected_index == 3
 	window.radiobutton.visible = selected_index == 1
 	window.radiolabel.visible = selected_index == 1
 
diff --git a/cybersyn/scripts/layout.lua b/cybersyn/scripts/layout.lua
index d56b8f6..7ad6c77 100644
--- a/cybersyn/scripts/layout.lua
+++ b/cybersyn/scripts/layout.lua
@@ -1,15 +1,16 @@
 --By Mami
 local area = require("__flib__.area")
+local abs = math.abs
 
 local function iterr(a, i)
-	i = i - 1
-	if i > 0 then
-		return i, a[i]
+	i = i + 1
+	if i <= #a then
+		return i, a[#a - i + 1]
 	end
 end
 
 local function irpairs(a)
-	return iterr, a, #a + 1
+	return iterr, a, 0
 end
 
 
@@ -18,7 +19,10 @@ end
 ---@param train_id uint
 function remove_train(map_data, train, train_id)
 	map_data.trains[train_id] = nil
-	map_data.trains_available[train_id] = nil
+	local depot = train.depot
+	if depot then
+		remove_available_train(map_data, depot)
+	end
 	local layout_id = train.layout_id
 	local count = map_data.layout_train_count[layout_id]
 	if count <= 1 then
@@ -89,10 +93,13 @@ end
 ---@param train LuaTrain
 local function get_train_direction(stop, train)
 	local back_rail = train.back_rail
-	local stop_rail = stop.connected_rail
 
-	if back_rail and stop_rail and back_rail.unit_number == stop_rail.unit_number then
-		return true
+	if back_rail then
+		local back_pos = back_rail.position
+		local stop_pos = stop.position
+		if abs(back_pos.x - stop_pos.x) < 3 and abs(back_pos.y - stop_pos.y) < 3 then
+			return true
+		end
 	end
 
 	return false
@@ -238,7 +245,7 @@ function set_r_wagon_combs(map_data, station, train)
 				if stack.valid_for_read then
 					local i = #signals + 1
 					--TODO: does this work or do we need to aggregate signals?
-					signals[i] = {index = i, signal = {type = stack.type, name = stack.name}, count = stack.count}
+					signals[i] = {index = i, signal = {type = stack.type, name = stack.name}, count = -stack.count}
 				end
 			end
 			set_combinator_output(map_data, comb, signals)
@@ -248,7 +255,7 @@ function set_r_wagon_combs(map_data, station, train)
 			local inv = carriage.get_fluid_contents()
 			for fluid_name, count in pairs(inv) do
 				local i = #signals + 1
-				signals[i] = {index = i, signal = {type = "fluid", name = fluid_name}, count = math.floor(count)}
+				signals[i] = {index = i, signal = {type = "fluid", name = fluid_name}, count = -math.floor(count)}
 			end
 			set_combinator_output(map_data, comb, signals)
 		end
diff --git a/cybersyn/scripts/main.lua b/cybersyn/scripts/main.lua
index 1afd4ba..3156931 100644
--- a/cybersyn/scripts/main.lua
+++ b/cybersyn/scripts/main.lua
@@ -29,6 +29,43 @@ local function on_failed_delivery(map_data, train)
 end
 
 
+---@param map_data MapData
+---@param depot Depot
+---@param train_id uint
+local function add_available_train(map_data, depot, train_id)
+	if depot.network_name then
+		local network = map_data.trains_available[depot.network_name]
+		if not network then
+			network = {}
+			map_data.trains_available[depot.network_name] = network
+		end
+		network[train_id] = depot.entity_stop.unit_number
+	end
+	depot.available_train = train_id
+	local train = map_data.trains[train_id]
+	train.depot_name = depot.entity_stop.backer_name
+	train.depot = depot
+end
+---@param map_data MapData
+---@param depot Depot
+function remove_available_train(map_data, depot)
+	if depot.available_train then
+		if depot.network_name then
+			local network = map_data.trains_available[depot.network_name]
+			if network then
+				network[depot.available_train] = nil
+				if next(network) == nil then
+					map_data.trains_available[depot.network_name] = nil
+				end
+			end
+		end
+		local train = map_data.trains[depot.available_train]
+		train.depot = nil
+		depot.available_train = nil
+	end
+end
+
+
 ---@param map_data MapData
 ---@param stop LuaEntity
 ---@param comb LuaEntity
@@ -43,6 +80,17 @@ local function on_depot_built(map_data, stop, comb, control)
 	map_data.depots[stop.unit_number] = depot
 end
 
+local function on_depot_broken(map_data, depot)
+	--remove train
+	if depot.available_train then
+		--NOTE: we could remove the schedule from this train
+		--local train = map_data.trains[depot.available_train]
+		map_data.trains[depot.available_train] = nil
+		remove_available_train(map_data, depot)
+	end
+	map_data.depots[depot.entity_stop.unit_number] = nil
+end
+
 ---@param map_data MapData
 ---@param stop LuaEntity
 ---@param comb1 LuaEntity
@@ -225,6 +273,7 @@ local function on_combinator_built(map_data, comb)
 end
 ---@param map_data MapData
 ---@param comb LuaEntity
+---@param network_name string?
 function on_combinator_network_updated(map_data, comb, network_name)
 	local stop = map_data.to_stop[comb.unit_number]
 
@@ -237,7 +286,12 @@ function on_combinator_network_updated(map_data, comb, network_name)
 		else
 			local depot = map_data.depots[stop.unit_number]
 			if depot.entity_comb == comb then
+				if depot.available_train then
+					remove_available_train(map_data, depot)
+					add_available_train(map_data, depot, depot.available_train)
+				end
 				depot.network_name = network_name
+
 			end
 		end
 	end
@@ -279,7 +333,7 @@ local function on_combinator_broken(map_data, comb)
 					depot.entity_comb = depot_comb
 					depot.network_name = control.first_signal and control.first_signal.name
 				else
-					map_data.depots[stop.unit_number] = nil
+					on_depot_broken(map_data, depot)
 				end
 			end
 		end
@@ -353,8 +407,12 @@ local function on_stop_broken(map_data, stop)
 	local station = map_data.stations[stop.unit_number]
 	if station then
 		on_station_broken(map_data, stop.unit_number, station)
+	else
+		local depot = map_data.depots[stop.unit_number]
+		if depot then
+			on_depot_broken(map_data, depot)
+		end
 	end
-	map_data.depots[stop.unit_number] = nil
 end
 ---@param map_data MapData
 ---@param stop LuaEntity
@@ -379,6 +437,12 @@ local function on_station_rename(map_data, stop)
 				end
 			end
 		end
+	else
+		local depot = map_data.depots[station_id]
+		if depot and depot.available_train then
+			local train = map_data.trains[depot.available_train]
+			train.depot_name = stop.backer_name
+		end
 	end
 end
 
@@ -395,42 +459,41 @@ local function find_and_add_all_stations_from_nothing(map_data)
 	end
 end
 
-
 ---@param map_data MapData
----@param stop LuaEntity
+---@param depot Depot
 ---@param train_entity LuaTrain
-local function on_train_arrives_depot(map_data, stop, train_entity)
+local function on_train_arrives_depot(map_data, depot, train_entity)
 	local contents = train_entity.get_contents()
-	local train = map_data.trains[train_entity.id]
+	local train_id = train_entity.id
+	local train = map_data.trains[train_id]
 	if train then
 		if train.manifest and train.status == STATUS_R_TO_D then
 			--succeeded delivery
 			train.p_station_id = 0
 			train.r_station_id = 0
 			train.manifest = nil
-			train.depot_name = train_entity.station.backer_name
 			train.status = STATUS_D
-			map_data.trains_available[stop.unit_number] = train_entity.id
+			add_available_train(map_data, depot, train_id)
 		else
 			if train.manifest then
 				on_failed_delivery(map_data, train)
 				send_lost_train_alert(train.entity)
 			end
-			train.depot_name = train_entity.station.backer_name
 			train.status = STATUS_D
-			map_data.trains_available[stop.unit_number] = train_entity.id
+			add_available_train(map_data, depot, train_id)
 		end
 		if next(contents) ~= nil then
 			--train still has cargo
 			train_entity.schedule = nil
-			remove_train(map_data, train, train_entity.id)
+			remove_train(map_data, train, train_id)
 			send_nonempty_train_in_depot_alert(train_entity)
 		else
 			train_entity.schedule = create_depot_schedule(train.depot_name)
 		end
 	elseif next(contents) == nil then
 		train = {
-			depot_name = train_entity.station.backer_name,
+			--depot_name = train_entity.station.backer_name,
+			--depot = depot,
 			status = STATUS_D,
 			entity = train_entity,
 			layout_id = 0,
@@ -441,8 +504,8 @@ local function on_train_arrives_depot(map_data, stop, train_entity)
 			manifest = nil,
 		}
 		update_train_layout(map_data, train)
-		map_data.trains[train_entity.id] = train
-		map_data.trains_available[stop.unit_number] = train_entity.id
+		map_data.trains[train_id] = train
+		add_available_train(map_data, depot, train_id)
 		local schedule = create_depot_schedule(train.depot_name)
 		train_entity.schedule = schedule
 	else
@@ -508,6 +571,8 @@ local function on_train_leaves_station(map_data, train)
 			set_combinator_output(map_data, station.entity_comb1, nil)
 			unset_wagon_combs(map_data, station)
 		end
+	elseif train.depot then
+		remove_available_train(map_data, train.depot)
 	end
 end
 
@@ -605,8 +670,11 @@ local function on_train_changed(event)
 		if stop and stop.valid and stop.name == "train-stop" then
 			if global.stations[stop.unit_number] then
 				on_train_arrives_buffer(global, stop, train)
-			elseif global.depots[stop.unit_number] then
-				on_train_arrives_depot(global, stop, train_e)
+			else
+				local depot = global.depots[stop.unit_number]
+				if depot then
+					on_train_arrives_depot(global, depot, train_e)
+				end
 			end
 		end
 	elseif event.old_state == defines.train_state.wait_station then