diff --git a/mods/lzr_laser/blocks.lua b/mods/lzr_laser/blocks.lua
index 29a303a..4ccf8cf 100644
--- a/mods/lzr_laser/blocks.lua
+++ b/mods/lzr_laser/blocks.lua
@@ -238,7 +238,12 @@ local register_element = function(subname, def, options)
 
 	local def_core_on
 
-	if options.activate ~= false then
+	if options.inactive then
+		def_core._lzr_inactive = options.inactive
+		if not options.keep_state_on_take then
+			def_core.drop = options.inactive
+		end
+	elseif options.activate ~= false then
 		def_core_on = table.copy(def_core)
 		if options.not_walkable_if_off then
 			def_core_on.walkable = true
@@ -269,7 +274,12 @@ local register_element = function(subname, def, options)
 		def_takable.description = def.description
 		minetest.register_node("lzr_laser:"..subname.."_takable", def_takable)
 
-		if options.activate ~= false then
+		if options.inactive then
+			def_takable._lzr_inactive = options.inactive.."_takable"
+			if not options.keep_state_on_take then
+				def_takable.drop = options.inactive.."_takable"
+			end
+		elseif options.activate ~= false then
 			def_takable._lzr_active = "lzr_laser:"..subname.."_takable_on"
 			local def_takable_on = table.copy(def_core_on)
 			def_takable_on._lzr_untakable = "lzr_laser:"..subname.."_on"
@@ -371,7 +381,6 @@ tm_def_off.mesh_off = "lzr_laser_mirror.obj"
 
 
 -- Transmissive Mirror
--- FIXME: Takable Transmissive Mirror becomes fixed after full laser update
 local tm_def_on_01 = table.copy(tm_def)
 tm_def_on_01._lzr_transmissive_mirror_state = "01"
 tm_def_on_01._lzr_inactive = "lzr_laser:transmissive_mirror_00"
@@ -400,11 +409,12 @@ tm_def_on_11._lzr_transmissive_mirror_state = "11"
 tm_def_on_11.description = S("Transmissive Mirror (active, 11)")
 tm_def_on_11.mesh_off = "lzr_laser_mirror_on_thru3.obj"
 
-local tm_options = { allow_take = true, activate = false, group = "transmissive_mirror" }
-register_element("transmissive_mirror_00", tm_def_off, tm_options)
-register_element("transmissive_mirror_01", tm_def_on_01, tm_options)
-register_element("transmissive_mirror_10", tm_def_on_10, tm_options)
-register_element("transmissive_mirror_11", tm_def_on_11, tm_options)
+local tm_options_off = { allow_take = true, activate = false, group = "transmissive_mirror" }
+local tm_options_on = { allow_take = true, activate = false, group = "transmissive_mirror", inactive = "lzr_laser:transmissive_mirror_00" }
+register_element("transmissive_mirror_00", tm_def_off, tm_options_off)
+register_element("transmissive_mirror_01", tm_def_on_01, tm_options_on)
+register_element("transmissive_mirror_10", tm_def_on_10, tm_options_on)
+register_element("transmissive_mirror_11", tm_def_on_11, tm_options_on)
 
 register_element("crystal", {
 	description = S("Crystal"),