diff --git a/ALE.dws b/ALE.dws
index 6eadbf7..ae79d88 100644
Binary files a/ALE.dws and b/ALE.dws differ
diff --git a/build-workspace.apls b/build-workspace.apls
index d243a90..4255e50 100755
--- a/build-workspace.apls
+++ b/build-workspace.apls
@@ -13,28 +13,29 @@
        W ← {⍺←1,≢∆ ⋄ 0≠c←chkrange ⍺:_←c ⋄ ⎕←∆[rngidx ⍺]∆e ∆nl ⎕NPUT ⍵ 2 ⋄ ∆f∘←0 ⋄ ⍙∘←(''≡⍙)⊃⍙ ⍵ ⋄ _←0}
       _r ← {∆p∘←p←⍵ ∆p⊃⍨⍵≡'' ⋄ 0=≢z←1+p ⎕S 2⊢∆:4 perr ¯1 ⋄ 0=+⌿m←z<_:⊃⌽z ⋄ ⊃⌽m⌿z}
       _s ← {∆p∘←p←⍵ ∆p⊃⍨⍵≡'' ⋄ 0=≢z←1+p ⎕S 2⊢∆:4 perr ¯1 ⋄ 0=+⌿m←z>_:⊃z ⋄ ⊃m⌿z}
-       a ← {0≠c←chkline ⍵:_←c ⋄ d←input ⋄ __∘←_ ⋄ _∘←⍵+≢d ⋄ d≡0⍴⊂'':_←0 ⋄ ∆∆∘←∆ ⋄ ∆∘←(⍵↑∆),d,⍵↓∆ ⋄ ∆f∘←1 ⋄ _←0}
-       c ← {0≠c←chkrange ⍵:_←c ⋄ d←input ⋄ s e←2⍴⍵ ⋄ ∆∆∘←∆ ⋄ ∆∘←(∆↑⍨s-1),d,e↓∆ ⋄ ∆f∘←1 ⋄ __∘←_ ⋄ _∘←(s-1)+≢d ⋄ _←0}
+       a ← {0≠c←chkline ⍵:_←c ⋄ d←input ⋄ __∘←_ ⋄ _∘←⍵+≢d ⋄ d≡0⍴⊂'':_←0 ⋄ ∆∆∘←∆ ⋄ ∆∘←(⍵↑∆),d,⍵↓∆ ⋄ ∆f∘←1 ⋄ ⍵ fixmarks≢d ⋄ _←0}
+       c ← {0≠c←chkrange ⍵:_←c ⋄ d←input ⋄ s e←2⍴⍵ ⋄ ∆∆∘←∆ ⋄ ∆∘←(∆↑⍨s-1),d,e↓∆ ⋄ ∆f∘←1 ⋄ __∘←_ ⋄ _∘←(s-1)+≢d ⋄ s fixmarks¯1+(s-e)+≢d ⋄ _←0}
  chkline ← {⍺←0 ⋄ ⍬≢⍴⍵:0 perr 4 ⋄ (⍵≥⍺)⍲(⍵≤≢∆):0 perr 11 ⋄ _←0}
 chkrange ← {⍺←1 ⋄ 1<⍴⍴⍵:0 perr 4 ⋄ >/w←2⍴⍵:0 perr 5 ⋄ ~∧/(w≥⍺)∧(w≤≢∆):0 perr 11 ⋄ _←0}
-       d ← {0≠c←chkrange ⍵:_←c ⋄ ∆∆∘←∆ ⋄ ∆∘←∆[,(⍳≢∆)~rngidx ⍵] ⋄ __∘←_ ⋄ _∘←(≢∆)⌊⊃⍵ ⋄ ∆f∘←1 ⋄ _←0}
-       e ← {∆f:2 perr 24 ⋄ 22::1 perr 22 ⋄ ∆∆∘←⊃∆ ∆e ∆nl∘←⎕NGET(⍙∘←⍵)1 ⋄ ⎕←2 ⎕NINFO ⍵ ⋄ __∘←_∘←≢∆ ⋄ _←0}
+       d ← {0≠c←chkrange ⍵:_←c ⋄ ∆∆∘←∆ ⋄ ∆∘←∆[,(⍳≢∆)~rngidx ⍵] ⋄ __∘←_ ⋄ _∘←(≢∆)⌊⊃⍵ ⋄ ∆f∘←1 ⋄ (0⌈¯1+⊃⍵)fixmarks 1+-/⌽2⍴⍵ ⋄ _←0}
+       e ← {∆f:2 perr 24 ⋄ 22::1 perr 22 ⋄ mn md←2⍴↓⍉↑∆mk ⋄ _←⎕EX mn/⍨md≡¨⊂⍙ ⋄ _←⍎⍕(,'_')(m/mn)'∘←'0,∆mv/⍨m←md≡¨⊆⍵ ⋄ ∆∆∘←⊃∆ ∆e ∆nl∘←⎕NGET(⍙∘←⍵)1 ⋄ ⎕←2 ⎕NINFO ⍵ ⋄ __∘←_∘←≢∆ ⋄ _←0}
      efn ← {∆f:2 perr 24 ⋄ 2≠≡⍵:3 perr 11 ⋄ 1≠≢⍴⍵:3 perr 4 ⋄ z←RESET ⋄ ∆∆ _∘←∆ _ ⋄ ∆ _∘←⍵(≢⍵) ⋄ _←0}
     eval ← {⍎⍵}
        g ← {⍺←1,≢∆ ⋄ 0≠c←chkrange ⍺:_←c ⋄ i←rngidx ⍺ ⋄ ∆p∘←p←⍵ ∆p⊃⍨⍵≡'' ⋄ 0=≢z←1+i[p ⎕S 2⊢∆[i]]:_←0 ⋄ i∆ i_←∆ _ ⋄ _←⍺⍺{⍺⍺⊢_∘←⍵}¨z ⋄ ∆∆ __∘←i∆ i_ ⋄ ∆f∘←1 ⋄ _←0}
-       i ← {0≠c←chkline ⍵:_←c ⋄ d←input ⋄ __∘←_ ⋄ _∘←⍵+0⌈¯1+≢d ⋄ d≡0⍴⊂'':_←0 ⋄ ∆∆∘←∆ ⋄ ∆∘←((0⌈⍵-1)↑∆),d,(0⌈⍵-1)↓∆ ⋄ ∆f∘←1 ⋄ _←0}
-       j ← {0≠c←chkrange ⍵:_←c ⋄ s e←2⍴⍵ ⋄ ∆∆∘←∆ ⋄ ∆∘←(∆↑⍨s-1),(,/∆[rngidx s e]),e↓∆ ⋄ ∆f∘←1 ⋄ __∘←_ ⋄ _∘←s ⋄ _←0}
-       k ← {0≠c←chkline ⍺:_←c ⋄ ∆m,¨←(⊂⍵)⍺}
+       i ← {0≠c←chkline ⍵:_←c ⋄ d←input ⋄ __∘←_ ⋄ _∘←⍵+0⌈¯1+≢d ⋄ d≡0⍴⊂'':_←0 ⋄ ∆∆∘←∆ ⋄ ∆∘←((0⌈⍵-1)↑∆),d,(0⌈⍵-1)↓∆ ⋄ ∆f∘←1 ⋄ (0⌈¯1+⍵)fixmarks≢d ⋄ _←0}
+       j ← {0≠c←chkrange ⍵:_←c ⋄ s e←2⍴⍵ ⋄ ∆∆∘←∆ ⋄ ∆∘←(∆↑⍨s-1),(,/∆[rngidx s e]),e↓∆ ⋄ ∆f∘←1 ⋄ __∘←_ ⋄ _∘←s ⋄ (⊃⍵)fixmarks s-e ⋄ _←0}
+       k ← {0≠c←chkline ⍺:_←c ⋄ k←⊂('_',⍵)⍙ ⋄ ∆mk∪←k ⋄ m←k≡¨∆mk ⋄ ∆mv(⊣⊣@(⍸m)∘⊢(≢m)⍴⊢)⍨←⍺ ⋄ ⍎'_',⍵,'∘←⍺'}
        l ← {0≠c←chkrange ⍵:_←c ⋄ z←{0⊣⎕←⍵}¨'\t' '$'⎕R'\\t' '$'⊢∆[rngidx ⍵] ⋄ _∘←⊃⌽2⍴⍵ ⋄ z←0}
        m ← {⍺←_,_ ⋄ 0≠c←chkline ⍵:_←c ⋄ 0≠c←chkrange⊢x y←2⍴⍺:_←c ⋄ (x≤⍵)∧(⍵≤y):0 perr 11
              z←(1+y-x)↑(x-1)↓∆ ⋄ 0≠c←d x y:_←c ⋄ ∆∆∘←∆ ⋄ ∆f∘←1 ⋄ __∘←_ ⋄ _∘←⍵+(⍵<x)×≢z ⋄ ∆∘←∆(↑,z,↓)⍨_-≢z ⋄ _←0}
        n ← {0≠c←chkrange ⍵:_←c ⋄ ⎕←(⊃⍵){(⍺+⍳≢⍵),⍪⍵}∆[rngidx ⍵] ⋄ _∘←⊃⌽2⍴⍵ ⋄ _←0}
        p ← {0≠c←chkrange ⍵:_←c ⋄ z←{0⊣⎕←⍵}¨∆[rngidx ⍵] ⋄ _∘←⊃⌽2⍴⍵ ⋄ z←0}
     perr ← {⎕←⍺⊃'BAD RANGE' 'FILE NOT FOUND' 'DIRTY' 'BAD DATA' 'NO MATCH' ⋄ _←⍵}
-       r ← {0≠c←chkline ⍺:_←c ⋄ d←⊃⎕NGET⍣(1=≡⍵)⊢⍵ 1 ⋄ ∆∆∘←∆ ⋄ ∆∘←(⍺↑∆),d,⍺↓∆ ⋄ ∆f∘←1 ⋄ __∘←_ ⋄ _∘←⍺+≢d ⋄ ⍙∘←((1=≡⍵)∧⍙≡'')⊃⍙ ⍵ ⋄ _←0}
+       r ← {0≠c←chkline ⍺:_←c ⋄ d←⊃⎕NGET⍣(1=≡⍵)⊢⍵ 1 ⋄ ∆∆∘←∆ ⋄ ∆∘←(⍺↑∆),d,⍺↓∆ ⋄ ∆f∘←1 ⋄ __∘←_ ⋄ _∘←⍺+≢d ⋄ ⍙∘←((1=≡⍵)∧⍙≡'')⊃⍙ ⍵ ⋄ ⍺ fixmarks≢d ⋄ _←0}
   rngidx ← {,(¯1+⊃⍵)+⍳1+-/⌽2⍴⍵}
        s ← {⍺←_,_ ⋄ p r g←3↑⍵,0 ⋄ ∆p∘←p←p ∆p⊃⍨p≡'' ⋄ 0≠c←chkrange ⍺:_←c ⋄ i←rngidx ⍺ ⋄ __∘←_ ⋄ _∘←1+i[⌈/p ⎕S 2⊢∆[i]] ⋄ ∆∆∘←∆ ⋄ ∆[i]←p ⎕R r⍠'ML'g⊢∆[i] ⋄ ∆f∘←1 ⋄ _←0}
-       t ← {0≠c←chkline ⍵:_←c ⋄ 0≠c←chkrange 2⍴⍺:_←c ⋄ ∆∆∘←∆ ⋄ ∆∘←(⍵↑∆),∆[i←rngidx ⍺],(⍵↓∆) ⋄ ∆f∘←1 ⋄ __∘←_ ⋄ _∘←⍵+≢i ⋄ _←0}
+       t ← {0≠c←chkline ⍵:_←c ⋄ 0≠c←chkrange 2⍴⍺:_←c ⋄ ∆∆∘←∆ ⋄ ∆∘←(⍵↑∆),∆[i←rngidx ⍺],(⍵↓∆) ⋄ ∆f∘←1 ⋄ __∘←_ ⋄ _∘←⍵+≢i ⋄ ⍵ fixmarks 1+-/⌽2⍴⍺ ⋄ _←0}
+fixmarks ← {0≠c←chkline ⍺:_←c ⋄ n d←2⍴↓⍉↑∆mk ⋄ n d/⍨←⊂m←d≡¨⊂⍙ ⋄ ∆mv[⍸m]∘←(m/∆mv)+⍵ ⋄ ⍎⍕'_ ',n,'∘←(0,⍵⍴⍨≢n)+',⍎¨(,'_'),n}
        v ← {⍺←1,≢∆ ⋄ 0≠c←chkrange ⍺:_←c ⋄ i←rngidx ⍺ ⋄ ∆p∘←p←⍵ ∆p⊃⍨⍵≡'' ⋄ 0=≢z←1+i[(⍳≢i)~p ⎕S 2⊢∆[i]]:_←0 ⋄ i∆ i_←∆ _ ⋄ _←⍺⍺{⍺⍺⊢_∘←⍵}¨z ⋄ ∆∆ __∘←i∆ i_ ⋄ ∆f∘←1 ⋄ _←0}
        w ← {⍺←1,≢∆ ⋄ 0≠c←chkrange ⍺:_←c ⋄ ⎕←∆[rngidx ⍺]∆e ∆nl ⎕NPUT ⍵ 1 ⋄ ∆f∘←0 ⋄ ⍙∘←(''≡⍙)⊃⍙ ⍵ ⋄ _←0}
       wq ← {⍺←⊢ ⋄ 0≠c←⍺ w ⍵:_←c ⋄ q}
@@ -61,7 +62,7 @@ chkrange ← {⍺←1 ⋄ 1<⍴⍴⍵:0 perr 4 ⋄ >/w←2⍴⍵:0 perr 5 ⋄ ~
    ∇
 
    ∇ {z}←RESET
-     ⍙ ∆ ∆∆ ∆e ∆f ∆nl ∆m ∆p _ __ z←''(0⍴⊂'')(0⍴⊂'')'UTF-8' 0(13 10)(⍬ ⍬)''0 0 0
+     ⍙ ∆ ∆∆ ∆e ∆f ∆nl ∆mk ∆mv ∆p _ __ z←''(0⍴⊂'')(0⍴⊂'')'UTF-8' 0(13 10)(0⍴'' '')⍬''0 0 0
    ∇
 
 RESET