--- a/UIObjectView.st	Sat Feb 04 05:05:14 2017 +0000
+++ b/UIObjectView.st	Sat Feb 04 21:35:40 2017 +0100
@@ -444,13 +444,14 @@
     ^ enableChannel value
 !
 
-enabled:aState
+enabled:aBoolean
     "set the modification / test mode
     "
 
-    enableChannel value:aState
-
-    "Modified: / 30.3.1999 / 16:18:12 / stefan"
+    enableChannel value:aBoolean
+
+    "Modified: / 30-03-1999 / 16:18:12 / stefan"
+    "Modified (format): / 04-02-2017 / 21:34:58 / cg"
 !
 
 resetModification
@@ -2764,10 +2765,12 @@
 
 !UIObjectView methodsFor:'user actions-undo history'!
 
-enableUndoHistory:aState
+enableUndoHistory:aBoolean
     "enable or disable undo history"
 
-    undoHistory enabled:aState
+    undoHistory enabled:aBoolean
+
+    "Modified (format): / 04-02-2017 / 21:34:55 / cg"
 !
 
 openUndoMenu
@@ -2933,8 +2936,10 @@
     ^ enabled
 !
 
-enabled:aState
-    enabled := aState
+enabled:aBoolean
+    enabled := aBoolean
+
+    "Modified (format): / 04-02-2017 / 21:35:01 / cg"
 !
 
 resetModification