diff --git a/common.lua b/common.lua
index 1708057..126782f 100644
--- a/common.lua
+++ b/common.lua
@@ -1,3 +1,24 @@
 
+--- sorts the position by ascending order
+-- @param pos1 @{node_pos} the first position
+-- @param pos2 @{node_pos} the second position
+-- @return @{node_pos} the lower position
+-- @return @{node_pos} the upper position
+function pick_and_place.sort_pos(pos1, pos2)
+        pos1 = {x=pos1.x, y=pos1.y, z=pos1.z}
+        pos2 = {x=pos2.x, y=pos2.y, z=pos2.z}
+        if pos1.x > pos2.x then
+                pos2.x, pos1.x = pos1.x, pos2.x
+        end
+        if pos1.y > pos2.y then
+                pos2.y, pos1.y = pos1.y, pos2.y
+        end
+        if pos1.z > pos2.z then
+                pos2.z, pos1.z = pos1.z, pos2.z
+        end
+        return pos1, pos2
+end
+
+
 function pick_and_place.rotate_size(size, rotation)
 end
\ No newline at end of file
diff --git a/configure.lua b/configure.lua
new file mode 100644
index 0000000..01515b0
--- /dev/null
+++ b/configure.lua
@@ -0,0 +1,31 @@
+
+local function get_outer_corners(pos1, pos2)
+    pos1, pos2 = pick_and_place.sort_pos(pos1, pos2)
+    pos1 = vector.subtract(pos1, 1)
+    pos2 = vector.add(pos2, 1)
+
+    return {
+        { x=pos1.x, y=pos1.y, z=pos1.z },
+        { x=pos1.x, y=pos1.y, z=pos2.z },
+        { x=pos1.x, y=pos2.y, z=pos1.z },
+        { x=pos1.x, y=pos2.y, z=pos2.z },
+        { x=pos2.x, y=pos1.y, z=pos1.z },
+        { x=pos2.x, y=pos1.y, z=pos2.z },
+        { x=pos2.x, y=pos2.y, z=pos1.z },
+        { x=pos2.x, y=pos2.y, z=pos2.z }
+    }
+end
+
+function pick_and_place.configure(pos1, pos2)
+    pos1, pos2 = pick_and_place.sort_pos(pos1, pos2)
+
+    for _, cpos in ipairs(get_outer_corners(pos1, pos2)) do
+        local node = minetest.get_node(cpos)
+        if node.name == "air" then
+            minetest.set_node(cpos, { name = "pick_and_place:handle" })
+            local meta = minetest.get_meta(cpos)
+            meta:set_string("pos1", minetest.pos_to_string(pos1))
+            meta:set_string("pos2", minetest.pos_to_string(pos2))
+        end
+    end
+end
\ No newline at end of file
diff --git a/configure_tool.lua b/configure_tool.lua
new file mode 100644
index 0000000..929f64d
--- /dev/null
+++ b/configure_tool.lua
@@ -0,0 +1,48 @@
+
+-- playername -> pos (if pos1 selected)
+local pos1 = {}
+
+minetest.register_tool("pick_and_place:configure", {
+    description = "Placement configuration tool",
+    inventory_image = "pick_and_place_plus.png^[colorize:#00ff00",
+    stack_max = 1,
+    range = 0,
+    on_use = function(itemstack, player)
+        print("on_use: " .. itemstack:get_name() .. ", " .. player:get_player_name())
+
+        local playername = player:get_player_name()
+        local pointed_pos = pick_and_place.get_pointed_position(player)
+
+        if pos1[playername] then
+            -- second position selected
+            -- configure and unmark
+            pick_and_place.configure(pos1[playername], pointed_pos)
+            pos1[playername] = nil
+        else
+            -- first position selected
+            pos1[playername] = pointed_pos
+        end
+    end,
+    on_secondary_use = function(itemstack, player)
+        print("on_secondary_use: " .. itemstack:get_name() .. ", " .. player:get_player_name())
+
+        local playername = player:get_player_name()
+        pos1[playername] = nil
+    end,
+    on_step = function(_, player)
+        local playername = player:get_player_name()
+        local pointed_pos = pick_and_place.get_pointed_position(player)
+
+        if pos1[playername] then
+            -- first position already selected
+            pick_and_place.show_preview(playername, "pick_and_place_plus.png", "#0000ff", pointed_pos, pos1[playername])
+        else
+            -- nothing selected yet
+            pick_and_place.show_preview(playername, "pick_and_place_plus.png", "#00ff00", pointed_pos)
+        end
+    end,
+    on_deselect = function(_, player)
+        local playername = player:get_player_name()
+        pick_and_place.clear_preview(playername)
+    end
+})
diff --git a/entity.lua b/entity.lua
index 5bbbc2f..4ada9ea 100644
--- a/entity.lua
+++ b/entity.lua
@@ -8,6 +8,7 @@ minetest.register_entity("pick_and_place:display", {
         static_save = false,
 		collisionbox = {0, 0, 0, 0, 0, 0},
 		visual = "cube",
+		backface_culling = false,
 		visual_size = {x=1, y=1, z=1},
 		glow = 10
 	},
diff --git a/handle_node.lua b/handle_node.lua
new file mode 100644
index 0000000..3dd8e40
--- /dev/null
+++ b/handle_node.lua
@@ -0,0 +1,32 @@
+local function on_rightclick(pos, _, _, itemstack)
+	if not itemstack:is_empty() then
+		-- not an empty hand
+		return
+	end
+
+	local meta = minetest.get_meta(pos)
+	local pos1 = minetest.string_to_pos(meta:get_string("pos1"))
+	local pos2 = minetest.string_to_pos(meta:get_string("pos2"))
+	local size = vector.add(vector.subtract(pos2, pos1), 1)
+
+
+	local tool = ItemStack("pick_and_place:place 1")
+	local tool_meta = tool:get_meta()
+	tool_meta:set_string("size", minetest.pos_to_string(size))
+
+	return tool
+end
+
+
+minetest.register_node("pick_and_place:handle", {
+	description = "Pick and place handle",
+	tiles = {"pick_and_place_plus.png"},
+    drawtype = "allfaces",
+    use_texture_alpha = "blend",
+    paramtype = "light",
+    sunlight_propagates = true,
+	on_rightclick = on_rightclick,
+	groups = {
+		oddly_breakable_by_hand = 3
+	}
+})
diff --git a/init.lua b/init.lua
index fbfc619..c358fdf 100644
--- a/init.lua
+++ b/init.lua
@@ -4,8 +4,10 @@ pick_and_place = {}
 local MP = minetest.get_modpath("pick_and_place")
 dofile(MP .. "/common.lua")
 dofile(MP .. "/pointed.lua")
+dofile(MP .. "/configure.lua")
 dofile(MP .. "/serialize.lua")
 dofile(MP .. "/entity.lua")
-dofile(MP .. "/node.lua")
-dofile(MP .. "/tool.lua")
+dofile(MP .. "/handle_node.lua")
+dofile(MP .. "/configure_tool.lua")
+dofile(MP .. "/place_tool.lua")
 dofile(MP .. "/preview.lua")
diff --git a/node.lua b/node.lua
deleted file mode 100644
index 1f36ab3..0000000
--- a/node.lua
+++ /dev/null
@@ -1,25 +0,0 @@
-
-minetest.register_node("pick_and_place:handle", {
-	description = "Pick and place handle",
-	tiles = {"pick_and_place_plus.png"},
-    drawtype = "allfaces",
-    use_texture_alpha = "blend",
-    paramtype = "light",
-    sunlight_propagates = true,
-	groups = {
-		oddly_breakable_by_hand = 3
-	}
-})
-
-minetest.register_node("pick_and_place:handle_configured", {
-	description = "Pick and place handle (configured)",
-	tiles = {"pick_and_place_plus.png^[colorize:#00ff00"},
-    drawtype = "allfaces",
-    use_texture_alpha = "blend",
-    paramtype = "light",
-    sunlight_propagates = true,
-	groups = {
-		oddly_breakable_by_hand = 3,
-        not_in_creative_inventory = 1
-	}
-})
\ No newline at end of file
diff --git a/tool.lua b/place_tool.lua
similarity index 65%
rename from tool.lua
rename to place_tool.lua
index 1366f8c..5c304a8 100644
--- a/tool.lua
+++ b/place_tool.lua
@@ -1,19 +1,27 @@
-
-minetest.register_tool("pick_and_place:placer", {
+minetest.register_tool("pick_and_place:place", {
     description = "Placement tool",
-    inventory_image = "pick_and_place_plus.png^[colorize:#00ff00",
+    inventory_image = "pick_and_place_plus.png^[colorize:#0000ff",
     stack_max = 1,
     range = 0,
     on_use = function(itemstack, player)
         print("on_use: " .. itemstack:get_name() .. ", " .. player:get_player_name())
+
+
     end,
     on_secondary_use = function(itemstack, player)
         print("on_secondary_use: " .. itemstack:get_name() .. ", " .. player:get_player_name())
+
     end,
-    on_step = function(_, player)
+    on_step = function(itemstack, player)
         local playername = player:get_player_name()
         local pointed_pos = pick_and_place.get_pointed_position(player)
-        pick_and_place.show_preview(playername, "pick_and_place_plus.png", "#00ff00", pointed_pos, vector.add(pointed_pos, {x=1, y=2, z=3}))
+
+        local meta = itemstack:get_meta()
+        local size = minetest.string_to_pos(meta:get_string("size"))
+
+        local pos2 = vector.add(pointed_pos, vector.subtract(size, 1))
+
+        pick_and_place.show_preview(playername, "pick_and_place_plus.png", "#0000ff", pointed_pos, pos2)
     end,
     on_deselect = function(_, player)
         local playername = player:get_player_name()
diff --git a/preview.lua b/preview.lua
index 762efb1..b11bc81 100644
--- a/preview.lua
+++ b/preview.lua
@@ -6,6 +6,8 @@ function pick_and_place.show_preview(playername, texture, color, pos1, pos2)
 	pos2 = pos2 or pos1
 	texture = texture .. "^[colorize:" .. color
 
+	pos1, pos2 = pick_and_place.sort_pos(pos1, pos2)
+
 	local key =
 		minetest.pos_to_string(pos1) .. "/" ..
 		minetest.pos_to_string(pos2) .. "/" ..
@@ -21,7 +23,7 @@ function pick_and_place.show_preview(playername, texture, color, pos1, pos2)
 
 	local visual_size = vector.add(vector.subtract(pos2, pos1), 1)
 	local offset = vector.divide(vector.subtract(pos2, pos1), 2)
-	local origin = vector.subtract(pos1, offset)
+	local origin = vector.subtract(pos2, offset)
 
 	local ent = pick_and_place.add_entity(origin, key)
 	ent:set_properties({