diff --git a/doc/CHANGES.md b/doc/CHANGES.md
index 28675a1..21ffe62 100644
--- a/doc/CHANGES.md
+++ b/doc/CHANGES.md
@@ -14,7 +14,7 @@
 `View_setMY` and `View_rotateLayoutAxis`
 4. `~` Revised the following functions to allow setting absolute and relative values: `Debug_setLogLevel`,
 `Manager_activateMonitor`, `Manager_setViewMonitor`, `Manager_setWindowMonitor`, `Monitor_activateView`, `Monitor_setWindowTag`,
-`View_setLayout`, `View_setMFactor`, `View_shuffleWindow`
+`View_setGapWidth`, `View_setLayout`, `View_setMFactor`, `View_shuffleWindow`
 5. `~` Revised the interface, i. e. the parameters, of the following functions for setting absolute and relative values -- but did
 not implement the functionality: `Monitor_toggleWindowTag`, `View_activateWindow`
 
diff --git a/doc/Default_hotkeys.md b/doc/Default_hotkeys.md
index ae17db2..1480280 100644
--- a/doc/Default_hotkeys.md
+++ b/doc/Default_hotkeys.md
@@ -128,20 +128,20 @@ the default configuration).
 `#Left::View_setLayoutProperty("MFactor", 0, -0.05)`
 > Reduce the size of the master area in the active view (only for the "tile"
 layout). You may also set an additional parameter for accelerating the third
-one. E. g. with `#Left::View_setLayoutProperty("MFactor", 0, -0.05, 2)` the
+one. E. g. with `#Left::View_setLayoutProperty(MFactor, 0, -0.05, 2)` the
 first step, by which the master area is reduced, is -0.0016% and will be
 doubled with consecutive calls until it reaches -0.05%.
 With the second parameter you may set an absolute value, e. g.
-'View_setLayoutProperty("MFactor", 0.5, 0)' splits the view in half.
+'View_setLayoutProperty(MFactor, 0.5, 0)' splits the view in half.
 
 `#Right::View_setLayoutProperty("MFactor", 0, +0.05)`
 > Enlarge the size of the master area in the active view (only for the "tile"
 layout). You may also set a additional parameter for accelerating the third
-one. E. g. with `#Right::View_setLayoutProperty("MFactor", 0, +0.05, 0.5)` the
+one. E. g. with `#Right::View_setLayoutProperty(MFactor, 0, +0.05, 0.5)` the
 first step, by which the master area is reduced, is 0.05%, but with consecutive
 calls it will be halved until it reaches 0.0016%.
 With the second parameter you may set an absolute value, e. g.
-'View_setLayoutProperty("MFactor", 0.67, 0)' makes the master area two thirds
+'View_setLayoutProperty(MFactor, 0.67, 0)' makes the master area two thirds
 and the stacking area one third the size of the view.
 
 `#^t::View_setLayoutProperty("Axis", 0, +1, 1)`
@@ -177,7 +177,10 @@ the master area by Y. Maximum of 9 (only for the "tile" layout).
 the master area by Y. Minimum of 1 (only for the "tile" layout).
 
 `#+Left::View_setLayoutProperty("GapWidth", 0, -2)`
-> Decrease the gap between windows in "monocle" and "tile" layout.
+> Decrease the gap between windows in "monocle" and "tile" layout. You may also
+set an absolute value for the gap width by using the first parameter, e. g.
+`View_setLayoutProperty(GapWidth, 0, 0)` will eliminate the gap and
+`View_setLayoutProperty(GapWidth, 20, 0)` will set it to 20px.
 
 `#+Right::View_setLayoutProperty("GapWidth", 0, +2)`
 > Increase the gap between windows in "monocle" and "tile" layout.
diff --git a/src/Main.ahk b/src/Main.ahk
index 09e4da7..803518b 100644
--- a/src/Main.ahk
+++ b/src/Main.ahk
@@ -101,14 +101,16 @@ Main_evalCommand(command)
     {
       functionName := SubStr(command, 1, i - 1)
       functionArguments := SubStr(command, i + 1, j - (i + 1))
+      StringReplace, functionArguments, functionArguments, %A_SPACE%, , All
       StringSplit, functionArgument, functionArguments, `,
       If (functionArgument0 < 2)
         %functionName%(functionArguments)
       Else If (functionArgument0 = 2)
-      {
-        StringTrimLeft, functionArgument2, functionArgument2, 1
         %functionName%(functionArgument1, functionArgument2)
-      }
+      Else If (functionArgument0 = 3)
+        %functionName%(functionArgument1, functionArgument2, functionArgument3)
+      Else If (functionArgument0 = 4)
+        %functionName%(functionArgument1, functionArgument2, functionArgument3, functionArgument4)
     }
   }
 }
diff --git a/src/View.ahk b/src/View.ahk
index c3659bc..0b725a8 100644
--- a/src/View.ahk
+++ b/src/View.ahk
@@ -197,25 +197,19 @@ View_moveWindow(i=0, d=0) {
   }
 }
 
-View_setGapWidth(d)
-{
-  Local l, v, w
+View_setGapWidth(i, d = 0) {
+  Local v
 
   v := Monitor_#%Manager_aMonitor%_aView_#1
-  l := View_#%Manager_aMonitor%_#%v%_layout_#1
-  If Tiler_isActive(Manager_aMonitor, v) Or (Config_layoutFunction_#%l% = "monocle")
-  {
-    If (d < 0)
-      d := Floor(d / 2) * 2
-    Else
-      d := Ceil(d / 2) * 2
-    w := View_#%Manager_aMonitor%_#%v%_layoutGapWidth + d
-    If (w < Monitor_#%Manager_aMonitor%_height And w < Monitor_#%Manager_aMonitor%_width)
-    {
-      View_#%Manager_aMonitor%_#%v%_layoutGapWidth := w
-      View_arrange(Manager_aMonitor, v)
-    }
-  }
+  If (i = 0) And (d != 0)
+    i := View_#%Manager_aMonitor%_#%v%_layoutGapWidth
+  i += d
+  If (i >= 0 And i < Monitor_#%Manager_aMonitor%_height And i < Monitor_#%Manager_aMonitor%_width) {
+    i := Ceil(i / 2) * 2
+    View_#%Manager_aMonitor%_#%v%_layoutGapWidth := i
+    Return, 1
+  } Else
+    Return, 0
 }
 
 View_setLayout(i, d = 0) {
@@ -237,9 +231,10 @@ View_setLayout(i, d = 0) {
 }
 
 View_setLayoutProperty(name, i, d, opt = 0) {
-  Local a, v
+  Local a, l, v
 
   v := Monitor_#%Manager_aMonitor%_aView_#1
+  l := View_#%Manager_aMonitor%_#%v%_layout_#1
   If Tiler_isActive(Manager_aMonitor, v) {
     If (name = "Axis")
       a := Tiler_setAxis(Manager_aMonitor, v, opt, d)
@@ -247,16 +242,16 @@ View_setLayoutProperty(name, i, d, opt = 0) {
       If (opt = 0)
         opt := 1
       a := Tiler_setMFactor(Manager_aMonitor, v, i, d, opt)
-    } Else If (name = "GapWidth")
-      View_setGapWidth(d)
-    Else If (name = "MX")
+    } Else If (name = "MX")
       a := Tiler_setMX(Manager_aMonitor, v, d)
     Else If (name = "MY")
       a := Tiler_setMY(Manager_aMonitor, v, d)
-
-    If a
-      View_arrange(Manager_aMonitor, v)
   }
+  If (name = "GapWidth") And (Tiler_isActive(Manager_aMonitor, v) Or (Config_layoutFunction_#%l% = "monocle"))
+    a := View_setGapWidth(i, d)
+
+  If a
+    View_arrange(Manager_aMonitor, v)
 }
 
 View_shuffleWindow(i, d = 0) {