diff --git a/assets/keylayout/en_us_colemak.key b/assets/keylayout/en_us_colemak.key
index 7378cd097..113de0631 100644
--- a/assets/keylayout/en_us_colemak.key
+++ b/assets/keylayout/en_us_colemak.key
@@ -1,19 +1,19 @@
-{"n":"US Colemak","t":[[""],[undefined],
+{"n":"US Colemak","capslock":"back","t":[[""],[undefined],
 [undefined],
 ["<HOME>"],
 [undefined],
 ["<CALL>"],
 ["<ENDCALL>"],
-["0",")"],
-["1","!"],
-["2","@"],
-["3","#"],
-["4","$"],
-["5","%"],
-["6","^"],
-["7","&"],
-["8","*"],
-["9","("],
+["0",")","’","”"],
+["1","!","¡","¹"],
+["2","@","º","²"],
+["3","#","ª","³"],
+["4","$","¢","£"],
+["5","%","€","¥"],
+["6","^","ħ","Ħ"],
+["7","&","ð","Ð"],
+["8","*","þ","Þ"],
+["9","(","‘","“"],
 ["*"],
 ["#"],
 ["<UP>"],
@@ -26,54 +26,54 @@
 ["<POWER>"],
 ["<CAMERA>"],
 ["<CLEAR>"],
-["a","A"],
-["b","B"],
-["c","C"],
-["s","S"],
-["f","F"],
-["t","T"],
-["d","D"],
-["h","H"],
-["u","U"],
-["n","N"],
-["e","E"],
-["i","I"],
-["m","M"],
-["k","K"],
-["y","Y"],
-[";",":"],
-["q","Q"],
-["p","P"],
-["r","R"],
-["g","G"],
-["l","L"],
-["v","V"],
-["w","W"],
-["x","X"],
-["j","J"],
-["z","Z"],
-[",","<"],
-[".",">"],
+["a","A","á","Á"],
+["b","B","\u0306","©"],
+["c","C","ç","Ç"],
+["s","S","ß","ẞ"],
+["f","F","ã","Ã"],
+["t","T","\u0301","\u030B"],
+["d","D","\u0308","°"],
+["h","H","\u030C","±"],
+["u","U","ú","Ú"],
+["n","N","ñ","Ñ"],
+["e","E","é","É"],
+["i","I","í","Í"],
+["m","M","\u0304","µ"],
+["k","K","\u030A","№"],
+["y","Y","ü","Ü"],
+[";",":","ö","Ö"],
+["q","Q","ä","Ä"],
+["p","P","ø","Ø"],
+["r","R","\u0300","®"],
+["g","G","\u0328","¶"],
+["l","L","ł","Ł"],
+["v","V","œ","Œ"],
+["w","W","å","Å"],
+["x","X","\u0302","¤"],
+["j","J","đ","Đ"],
+["z","Z","æ","Æ"],
+[",","<","\u0327","·"],
+[".",">","\u0307","…"],
 ["<ALT_L>"],
 ["<ALT_R>"],
 ["<SHIFT_L>"],
 ["<SHIFT_R>"],
 ["<TAB>"],
-[" "],
+[" "," ","\u00A0","\u00A0"],
 ["<SYM>"],
 ["<EXPLORER>"],
 ["<ENVELOPE>"],
 ["\n"],
 ["\x08"],
-["`","~"],
-["-","_"],
-["=","+"],
-["[","{"],
-["]","}"],
-["\\","|"],
-["o","O"],
-["'",'"'],
-["/","?"],
+["`","~","\u0303","≈"],
+["-","_","–","—"],
+["=","+","×","÷"],
+["[","{","«","‹"],
+["]","}","»","›"],
+["\\","|,"~","¦"],
+["o","O","ó","Ó"],
+["'",'"',"õ","Õ"],
+["/","?","¿","§"],
 ["<AT>"],
 ["<NUM_LOCK>"],
 ["<HEADSETHOOK>"],
diff --git a/assets/keylayout/en_us_colemak_dh.key b/assets/keylayout/en_us_colemak_dh.key
index 014b9decb..bb811ea82 100644
--- a/assets/keylayout/en_us_colemak_dh.key
+++ b/assets/keylayout/en_us_colemak_dh.key
@@ -1,19 +1,19 @@
-{"n":"US Colemak-DH","t":[[""],[undefined],
+{"n":"US Colemak-DH","capslock":"back","t":[[""],[undefined],
 [undefined],
 ["<HOME>"],
 [undefined],
 ["<CALL>"],
 ["<ENDCALL>"],
-["0",")"],
-["1","!"],
-["2","@"],
-["3","#"],
-["4","$"],
-["5","%"],
-["6","^"],
-["7","&"],
-["8","*"],
-["9","("],
+["0",")","’","”"],
+["1","!","¡","¹"],
+["2","@","º","²"],
+["3","#","ª","³"],
+["4","$","¢","£"],
+["5","%","€","¥"],
+["6","^","ħ","Ħ"],
+["7","&","ð","Ð"],
+["8","*","þ","Þ"],
+["9","(","‘","“"],
 ["*"],
 ["#"],
 ["<UP>"],
@@ -26,54 +26,54 @@
 ["<POWER>"],
 ["<CAMERA>"],
 ["<CLEAR>"],
-["a","A"],
-["v","V"],
-["c","C"],
-["s","S"],
-["f","F"],
-["t","T"],
-["g","G"],
-["m","M"],
-["u","U"],
-["n","N"],
-["e","E"],
-["i","I"],
-["h","H"],
-["k","K"],
-["y","Y"],
-[";",":"],
-["q","Q"],
-["p","P"],
-["r","R"],
-["b","B"],
-["l","L"],
-["d","D"],
-["w","W"],
-["x","X"],
-["j","J"],
-["z","Z"],
-[",","<"],
-[".",">"],
+["a","A","á","Á"],
+["v","V","œ","Œ"],
+["c","C","ç","Ç"],
+["s","S","ß","ẞ"],
+["f","F","ã","Ã"],
+["t","T","\u0301","\u030B"],
+["g","G","\u0328","¶"],
+["m","M","\u0304","µ"],
+["u","U","ú","Ú"],
+["n","N","ñ","Ñ"],
+["e","E","é","É"],
+["i","I","í","Í"],
+["h","H","\u030C","±"],
+["k","K","\u030A","№"],
+["y","Y","ü","Ü"],
+[";",":","ö","Ö"],
+["q","Q","ä","Ä"],
+["p","P","ø","Ø"],
+["r","R","\u0300","®"],
+["b","B","\u0306","©"],
+["l","L","ł","Ł"],
+["d","D","\u0308","°"],
+["w","W","å","Å"],
+["x","X","\u0302","¤"],
+["j","J","đ","Đ"],
+["z","Z","æ","Æ"],
+[",","<","\u0327","·"],
+[".",">","\u0307","…"],
 ["<ALT_L>"],
 ["<ALT_R>"],
 ["<SHIFT_L>"],
 ["<SHIFT_R>"],
 ["<TAB>"],
-[" "],
+[" "," ","\u00A0","\u00A0"],
 ["<SYM>"],
 ["<EXPLORER>"],
 ["<ENVELOPE>"],
 ["\n"],
 ["\x08"],
-["`","~"],
-["-","_"],
-["=","+"],
-["[","{"],
-["]","}"],
-["\\","|"],
-["o","O"],
-["'",'"'],
-["/","?"],
+["`","~","\u0303","≈"],
+["-","_","–","—"],
+["=","+","×","÷"],
+["[","{","«","‹"],
+["]","}","»","›"],
+["\\","|,"~","¦"],
+["o","O","ó","Ó"],
+["'",'"',"õ","Õ"],
+["/","?","¿","§"],
 ["<AT>"],
 ["<NUM_LOCK>"],
 ["<HEADSETHOOK>"],
diff --git a/assets/keylayout/en_us_qwerty.key b/assets/keylayout/en_us_qwerty.key
index f8d98a552..99ec6a0a7 100644
--- a/assets/keylayout/en_us_qwerty.key
+++ b/assets/keylayout/en_us_qwerty.key
@@ -1,4 +1,4 @@
-{"n":"US Qwerty","t":[[""],[undefined],
+{"n":"US Qwerty","capslock":"caps","t":[[""],[undefined],
 [undefined],
 ["<HOME>"],
 [undefined],
diff --git a/src/net/torvald/terrarum/gamecontroller/IME.kt b/src/net/torvald/terrarum/gamecontroller/IME.kt
index b5f385e6c..c4455ae44 100644
--- a/src/net/torvald/terrarum/gamecontroller/IME.kt
+++ b/src/net/torvald/terrarum/gamecontroller/IME.kt
@@ -8,9 +8,14 @@ typealias IMEOutput = String
 
 data class TerrarumKeyLayout(
         val name: String,
+        val capsMode: TerrarumKeyCapsMode,
         val symbols: Array<Array<String?>>?
 )
 
+enum class TerrarumKeyCapsMode {
+    CAPS, SHIFT, BACK
+}
+
 data class TerrarumIME(
         val name: String,
         val config: TerrarumIMEConf,
@@ -101,17 +106,25 @@ object IME {
         return highLayers.keys.toList()
     }
 
+    private fun String.toCapsMode() = when (this.lowercase()) {
+        "caps" -> TerrarumKeyCapsMode.CAPS
+        "shift" -> TerrarumKeyCapsMode.SHIFT
+        "back" -> TerrarumKeyCapsMode.BACK
+        else -> throw IllegalArgumentException("Unknown capslock mode: $this")
+    }
+
     private fun String.toViewCount() = when (this.lowercase()) {
         "none" -> TerrarumIMEViewCount.NONE
         "one" -> TerrarumIMEViewCount.ONE
         "many" -> TerrarumIMEViewCount.MANY
-        else -> throw IllegalArgumentException(this)
+        else -> throw IllegalArgumentException("Unknown candidates mode: $this")
     }
 
     private fun parseKeylayoutFile(file: File): TerrarumKeyLayout {
         val src = file.readText(Charsets.UTF_8)
         val jsval = context.eval("js", "'use strict';Object.freeze($src)")
         val name = jsval.getMember("n").asString()
+        val capsmode = jsval.getMember("capslock").asString().toCapsMode()
 
         val out = Array(256) { Array<String?>(4) { null } }
 
@@ -131,7 +144,7 @@ object IME {
 
 //        println("[IME] Test Keymap print for $name:"); for (keycode in 0 until 256) { print("$keycode:\t"); println(out[keycode].joinToString("\t")) }
 
-        return TerrarumKeyLayout(name, out)
+        return TerrarumKeyLayout(name, capsmode, out)
     }
 
     private fun String.toCanditates(): List<String> =
diff --git a/src/net/torvald/terrarum/gamecontroller/InputStrober.kt b/src/net/torvald/terrarum/gamecontroller/InputStrober.kt
index 783860920..6cda59b4f 100644
--- a/src/net/torvald/terrarum/gamecontroller/InputStrober.kt
+++ b/src/net/torvald/terrarum/gamecontroller/InputStrober.kt
@@ -57,14 +57,21 @@ object InputStrober {
             repeatCount += 1
 
             val shiftin = keys.contains(Input.Keys.SHIFT_LEFT) || keys.contains(Input.Keys.SHIFT_RIGHT)
+            val altgrin = keys.contains(Input.Keys.ALT_RIGHT)
             val keysym0 = keysToStr(keymap, keys)
             val newKeysym0 = keysToStr(keymap, keyDiff)
-            val keysym = if (keysym0 == null) null
-            else if (shiftin && keysym0[1]?.isNotBlank() == true) keysym0[1]
-            else keysym0[0]
-            val newKeysym = if (newKeysym0 == null) null
-            else if (shiftin && newKeysym0[1]?.isNotBlank() == true) newKeysym0[1]
-            else newKeysym0[0]
+            val keysym =
+                    if (keysym0 == null) null
+                    else if (shiftin && altgrin && keysym0[3]?.isNotBlank() == true) keysym0[3]
+                    else if (altgrin && keysym0[2]?.isNotBlank() == true) keysym0[2]
+                    else if (shiftin && keysym0[1]?.isNotBlank() == true) keysym0[1]
+                    else keysym0[0]
+            val newKeysym =
+                    if (newKeysym0 == null) null
+                    else if (shiftin && altgrin && newKeysym0[3]?.isNotBlank() == true) newKeysym0[3]
+                    else if (altgrin && newKeysym0[2]?.isNotBlank() == true) newKeysym0[2]
+                    else if (shiftin && newKeysym0[1]?.isNotBlank() == true) newKeysym0[1]
+                    else newKeysym0[0]
 
             val headKeyCode = if (keyDiff.size < 1) keys[0] else keyDiff[0]
 
diff --git a/src/net/torvald/terrarum/ui/UIItemTextLineInput.kt b/src/net/torvald/terrarum/ui/UIItemTextLineInput.kt
index 8262815cb..4927d6ac5 100644
--- a/src/net/torvald/terrarum/ui/UIItemTextLineInput.kt
+++ b/src/net/torvald/terrarum/ui/UIItemTextLineInput.kt
@@ -170,6 +170,7 @@ class UIItemTextLineInput(
                     fboUpdateLatch = true
                     forceLitCursor()
                     val ime = getIME()
+                    val lowLayer = IME.getLowLayerByName(App.getConfigString("basekeyboardlayout"))
 
                     if (keycodes.contains(App.getConfigInt("control_key_toggleime")) && repeatCount == 1) {
                         toggleIME()
@@ -182,7 +183,7 @@ class UIItemTextLineInput(
                         endComposing()
                         copyToClipboard()
                     }
-                    else if (keycodes.contains(Input.Keys.BACKSPACE)) {
+                    else if (keycodes.contains(Input.Keys.BACKSPACE) || (keycodes.contains(Input.Keys.CAPS_LOCK) && lowLayer.capsMode == TerrarumKeyCapsMode.BACK)) {
                         if (ime != null && ime.composing()) {
                             candidates = ime.backspace().map { CodepointSequence(it.toCodePoints()) }
                         }