--- a/UIPropertyView.st	Sat Mar 01 13:43:01 1997 +0100
+++ b/UIPropertyView.st	Sat Mar 01 13:44:39 1997 +0100
@@ -1416,11 +1416,13 @@
     modified ifTrue:[
         self modified:false.
 
-        self isLayoutSpec ifFalse:[
-            builderView updateFromSpec:specBeingEdited
-        ] ifTrue:[
-            layoutType notNil ifTrue:[
-                self perform:(('write', layoutType asString) asSymbol)
+        self isSingleSelection ifTrue:[
+            self isLayoutSpec ifFalse:[
+                builderView updateFromSpec:specBeingEdited
+            ] ifTrue:[
+                layoutType notNil ifTrue:[
+                    self perform:(('write', layoutType asString) asSymbol)
+                ]
             ]
         ]
     ]
@@ -1447,8 +1449,10 @@
     currentSpecChannel notNil ifTrue:[
         currentSpecChannel value:specBeingEdited.
 
-        self isLayoutSpec ifTrue:[
-            self showAndFetchLayout.
+        self isSingleSelection ifTrue:[
+            self isLayoutSpec ifTrue:[
+                self showAndFetchLayout.
+            ]
         ]
     ].
     modified := false.
@@ -1892,6 +1896,18 @@
     "returns true if current menu is a layout specification
     "
     ^ propertyList selection == self class titleOfLayoutMenu
+!
+
+isMultiSelection
+    "returns true in case of a multiple selection
+    "
+    ^ builderView numberOfSelections > 1
+!
+
+isSingleSelection
+    "returns true in case of a single selection
+    "
+    ^ currentView notNil
 ! !
 
 !UIPropertyView class methodsFor:'documentation'!