diff --git a/src/lib/meta/trait.hpp b/src/lib/meta/trait.hpp
index e15d8a2ae..a5f6d1df7 100644
--- a/src/lib/meta/trait.hpp
+++ b/src/lib/meta/trait.hpp
@@ -95,12 +95,13 @@ namespace mobject{
 namespace lib {
 namespace meta {
   
-  using std::remove_cv;
   using std::remove_cv_t;
-  using std::remove_pointer;
   using std::remove_pointer_t;
-  using std::remove_reference;
   using std::remove_reference_t;
+  using std::conditional_t;
+  using std::is_reference_v;
+  using std::is_lvalue_reference_v;
+  using std::is_rvalue_reference_v;
   using std::is_pointer;
   using std::is_base_of;
   using std::is_convertible;
@@ -248,7 +249,11 @@ namespace meta {
   template<typename X>
   struct Strip
     {
-      using TypeUnconst  = remove_cv_t<X>;
+      using TypeUnconst  = conditional_t<is_reference_v<X>
+                                        ,  conditional_t<is_rvalue_reference_v<X>
+                                                        ,  remove_cv_t<remove_reference_t<X>> &&
+                                                        ,  remove_cv_t<remove_reference_t<X>> & >
+                                        ,  remove_cv_t<X>>;
       using TypeReferred = remove_reference_t<TypeUnconst>;
       using TypePointee  = remove_pointer_t<TypeReferred>;
       using TypePlain    = remove_cv_t<TypePointee>;
diff --git a/src/lib/several-builder.hpp b/src/lib/several-builder.hpp
index 28e032476..9180996c7 100644
--- a/src/lib/several-builder.hpp
+++ b/src/lib/several-builder.hpp
@@ -93,6 +93,9 @@ namespace lib {
     using std::is_trivially_destructible_v;
     using std::has_virtual_destructor_v;
     using std::is_trivially_copyable_v;
+    using std::is_object_v;
+    using std::is_volatile_v;
+    using std::is_const_v;
     using std::is_same_v;
     using lib::meta::is_Subclass;
 
@@ -290,6 +293,17 @@ namespace lib {
           return move(*this);
         }
       
+      template<typename VAL, typename...VALS>
+      SeveralBuilder&&
+      append (VAL&& val, VALS&& ...vals)
+        {
+          emplace<VAL> (forward<VAL> (val));
+          if constexpr (0 < sizeof...(VALS))
+            return append (forward<VALS> (vals)...);
+          else
+            return move(*this);
+        }
+      
       template<class IT>
       SeveralBuilder&&
       appendAll (IT&& data)
@@ -321,7 +335,7 @@ namespace lib {
       SeveralBuilder&&
       emplace (ARGS&& ...args)
         {
-          using Val = typename meta::RefTraits<TY>::Value;
+          using Val = typename meta::Strip<TY>::TypeReferred;
           emplaceNewElm<Val> (forward<ARGS> (args)...);
           return move(*this);
         }
@@ -355,6 +369,8 @@ namespace lib {
       void
       emplaceNewElm (ARGS&& ...args)
         {
+          static_assert (is_object_v<TY> and not (is_const_v<TY> or is_volatile_v<TY>));
+              
           // mark when target type is not trivially movable
           probeMoveCapability<TY>();
           
diff --git a/tests/library/several-builder-test.cpp b/tests/library/several-builder-test.cpp
index 8805a347b..dacd31f6a 100644
--- a/tests/library/several-builder-test.cpp
+++ b/tests/library/several-builder-test.cpp
@@ -154,26 +154,15 @@ namespace test{
           CHECK (    isnil(builder));
           CHECK (not isnil(elms));
           CHECK (7 == elms.size());
-SHOW_EXPR(elms[0])
-SHOW_EXPR(elms[0].getVal())
           CHECK (elms[0].getVal() == (3+1)*3);                         // indeed a Num<3> with default-seed ≡ 3
-SHOW_EXPR(elms[0].calc(1))
           CHECK (elms[0].calc(1)  == 3 + 1 + (3+3+3));                 // indeed called the overridden calc() operation
-SHOW_EXPR(elms[1].getVal())
           CHECK (elms[1].getVal() == (2+1)*1);                         // indeed a Num<2> with seed ≡ 1
-SHOW_EXPR(elms[1].calc(1))
           CHECK (elms[1].calc(1)  == 2 + 1 + (1+1));                   // indeed the overridden calc() picking from the Array(1,1)
-SHOW_EXPR(elms[2].getVal())
           CHECK (isLimited (1, elms[2].getVal(), 100'000'000));        // indeed a Dummy with default random seed
-SHOW_EXPR(elms[3].getVal())
           CHECK (isLimited (1, elms[3].getVal(), 100'000'000));        // and this one too, since we filled in two instances
-SHOW_EXPR(elms[4].getVal())
           CHECK (elms[4].getVal() == 5);                               // followed by tree instances Dummy(5)
-SHOW_EXPR(elms[5].getVal())
           CHECK (elms[5].getVal() == 5);
-SHOW_EXPR(elms[6].getVal())
           CHECK (elms[6].getVal() == 5);
-SHOW_EXPR(elms[6].calc(1))
           CHECK (elms[6].calc(1)  == 5+1);                             // indeed invoking the base implementation of calc()
         }
       
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index c57f8016c..a9be8133f 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -83063,8 +83063,8 @@ Date:&#160;&#160;&#160;Thu Apr 20 18:53:17 2023 +0200<br/>
 <node CREATED="1716936092764" ID="ID_618217173" MODIFIED="1716936100479" TEXT="Objekte einzeln verschieben"/>
 <node CREATED="1716936101233" ID="ID_1155209653" MODIFIED="1716936109052" TEXT="per std::memmove"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1716914892972" ID="ID_1080699305" MODIFIED="1716914902543" TEXT="Platzieren neuer Daten">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1716914892972" ID="ID_1080699305" MODIFIED="1718147544739" TEXT="Platzieren neuer Daten">
+<icon BUILTIN="button_ok"/>
 <node BACKGROUND_COLOR="#c8c0b6" COLOR="#435e98" CREATED="1718109947743" ID="ID_1627078678" MODIFIED="1718113032356" TEXT="Anforderungen">
 <icon BUILTIN="yes"/>
 <node CREATED="1718109979283" ID="ID_249817182" MODIFIED="1718109999348" TEXT="kann Inhalte aus einem Iterator kopieren"/>
@@ -83080,12 +83080,10 @@ Date:&#160;&#160;&#160;Thu Apr 20 18:53:17 2023 +0200<br/>
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1718113039814" ID="ID_553490359" MODIFIED="1718118077881" TEXT="Implementierung durch Delegation">
-<icon BUILTIN="flag-yellow"/>
-</node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1718118079617" ID="ID_786279389" LINK="#ID_748929457" MODIFIED="1718118116331" TEXT="Testen mit allen Schikanen">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1718113039814" ID="ID_553490359" MODIFIED="1718146528752" TEXT="Implementierung durch Delegation">
+<icon BUILTIN="button_ok"/>
 </node>
+<node COLOR="#338800" CREATED="1718118079617" ID="ID_786279389" LINK="#ID_748929457" MODIFIED="1718147534164" TEXT="Testen mit allen Schikanen"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1716936138265" ID="ID_344813639" MODIFIED="1716936143886" TEXT="Allokations-Policies">
 <icon BUILTIN="flag-yellow"/>
@@ -83096,6 +83094,18 @@ Date:&#160;&#160;&#160;Thu Apr 20 18:53:17 2023 +0200<br/>
 </node>
 </node>
 </node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1718147554244" ID="ID_1260306723" MODIFIED="1718147566635" TEXT="convenience-Functions">
+<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1718147568653" ID="ID_175737075" MODIFIED="1718147586344" TEXT="makeSeveral ( initializer_list )">
+<icon BUILTIN="button_ok"/>
+</node>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1718147641688" ID="ID_866349389" MODIFIED="1718147693481" TEXT="makeSeveral&lt;TY&gt; (elms...)">
+<icon BUILTIN="flag-yellow"/>
+</node>
+<node BACKGROUND_COLOR="#f0d5c5" COLOR="#990033" CREATED="1718147675355" ID="ID_1373098366" MODIFIED="1718147685899" TEXT="sinnvolle Syntax f&#xfc;r Allokator??">
+<icon BUILTIN="help"/>
+</node>
+</node>
 </node>
 </node>
 </node>
@@ -83308,11 +83318,36 @@ Date:&#160;&#160;&#160;Thu Apr 20 18:53:17 2023 +0200<br/>
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eef0c5" COLOR="#990000" CREATED="1716857382441" ID="ID_748929457" MODIFIED="1718118121268" TEXT="check_Builder">
-<icon BUILTIN="pencil"/>
-<node CREATED="1718118125770" ID="ID_1218727200" MODIFIED="1718118149459" TEXT="Container Basistyp + beliebige Subklassen"/>
-<node CREATED="1718122126403" ID="ID_749733199" MODIFIED="1718122206871" TEXT="Basistyp und beliebiger Typ &#x27f9; wilder cast"/>
-<node CREATED="1718122626451" ID="ID_142448404" MODIFIED="1718122636499" TEXT="Iterator einf&#xfc;llen"/>
+<node COLOR="#338800" CREATED="1716857382441" ID="ID_748929457" MODIFIED="1718147519927" TEXT="check_Builder">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1718118125770" ID="ID_1218727200" MODIFIED="1718146644299" TEXT="Container Basistyp + beliebige Subklassen">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1718122126403" ID="ID_749733199" MODIFIED="1718146646198" TEXT="Basistyp und beliebiger Typ &#x27f9; wilder cast">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1718146547267" ID="ID_123092435" MODIFIED="1718146584184" TEXT="ein wildes Beispiel ist gar nicht so einfach....">
+<icon BUILTIN="smiley-oh"/>
+</node>
+<node CREATED="1718146553609" ID="ID_543025538" MODIFIED="1718146642666" TEXT="kann kein char[] direkt erstellen">
+<richcontent TYPE="NOTE"><html>
+  <head>
+    
+  </head>
+  <body>
+    <p>
+      ...und zwar, weil man ein (language)-Array mit operator new[] allozieren mu&#223;
+    </p>
+    <p>
+      ...&#10004; OK &#8212; selber schuld
+    </p>
+  </body>
+</html>
+</richcontent>
+</node>
+</node>
+<node COLOR="#338800" CREATED="1718122626451" ID="ID_142448404" MODIFIED="1718147515497" TEXT="Iterator einf&#xfc;llen">
+<icon BUILTIN="button_ok"/>
+</node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1716857382441" ID="ID_610081580" MODIFIED="1716857402102" TEXT="check_ErrorHandling">
 <icon BUILTIN="flag-yellow"/>