diff --git a/src/lib/test/event-log.hpp b/src/lib/test/event-log.hpp
index 90897c7f0..19bfe0165 100644
--- a/src/lib/test/event-log.hpp
+++ b/src/lib/test/event-log.hpp
@@ -535,24 +535,35 @@ namespace test{
           return *this;
         }
       
+      void
+      refineSerach_matchArguments (ArgSeq&& argSeq)
+        {
+          string argList(util::join(argSeq));
+          refineSerach (matchArguments(move(argSeq)));
+          evaluateQuery ("match-arguments("+argList+")");
+        }
+      
       /** refine filter to additionally require specific arguments
        * @remarks the refined filter works on each record qualified by the
        *          query expression established thus far; it additionally
        *          looks into the arguments (children list) of the log entry.
-       * @warning match is processed by comparision of string representation.
+       * @warning match is processed by comparison of string representation.
        */
       template<typename...ARGS>
       EventMatch&
       arg (ARGS const& ...args)
         {
-          ArgSeq argSeq(stringify<ArgSeq> (args...));
-          string argList(util::join(argSeq));
-          
-          refineSerach (matchArguments(move(argSeq)));
-          evaluateQuery ("match-arguments("+argList+")");
+          refineSerach_matchArguments (stringify<ArgSeq> (args...));
           return *this;
         }
       
+      void
+      refineSerach_matchArgsRegExp (RExSeq&& regExpSeq, string rendered_regExps)
+        {
+          refineSerach (matchArgsRegExp (move (regExpSeq)));
+          evaluateQuery ("match-args-RegExp("+rendered_regExps+")");
+        }
+      
       /** refine filter to additionally cover all arguments
        *  with a series of regular expressions.
        * @note For this match to succeed, any arguments of the log entry
@@ -567,8 +578,8 @@ namespace test{
       EventMatch&
       argMatch (ARGS const& ...regExps)
         {
-          refineSerach (matchArgsRegExp (stringify<RExSeq> (regExps...)));
-          evaluateQuery ("match-args-RegExp("+util::join(stringify<ArgSeq>(regExps...))+")");
+          refineSerach_matchArgsRegExp (stringify<RExSeq> (regExps...),
+                                        util::join(stringify<ArgSeq>(regExps...)));
           return *this;
         }
       
@@ -630,9 +641,7 @@ namespace test{
       on (const X *const targetObj)
         {
           string targetID = idi::instanceTypeID (targetObj);
-          refineSerach (matchAttribute("this",targetID));
-          evaluateQuery ("match-this(\""+targetID+"\")");
-          return *this;
+          return this->on(targetID);
         }
     };
   
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 93511c487..ac9bb7bd4 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -31666,7 +31666,7 @@
 <icon BUILTIN="button_ok"/>
 <node CREATED="1535939763441" ID="ID_132867774" MODIFIED="1535939780642" TEXT="mu&#xdf; &quot;nur noch&quot; Cursor gegen neue State-Core austauschen"/>
 <node CREATED="1535939781302" ID="ID_285459121" MODIFIED="1535939796824" TEXT="diese h&#xe4;lt den Cursor plus einen Stack mit den Filtern"/>
-<node COLOR="#338800" CREATED="1537058259201" ID="ID_1249469718" MODIFIED="1537320125432" TEXT="Anpassungen">
+<node COLOR="#338800" CREATED="1537058259201" FOLDED="true" ID="ID_1249469718" MODIFIED="1537320577437" TEXT="Anpassungen">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1537058272183" ID="ID_1629184923" MODIFIED="1537059375100" TEXT="Alles per Filter-Chain machen">
 <icon BUILTIN="button_ok"/>
@@ -31769,7 +31769,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1537059388025" ID="ID_1276869558" MODIFIED="1537320123695" TEXT="Tests scheitern...">
+<node COLOR="#338800" CREATED="1537059388025" FOLDED="true" ID="ID_1276869558" MODIFIED="1537320566920" TEXT="Tests scheitern...">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1537059395184" ID="ID_77123611" MODIFIED="1537316730803" TEXT="EventLog_test">
 <richcontent TYPE="NOTE"><html>
@@ -31920,8 +31920,8 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536368106394" ID="ID_1324169393" MODIFIED="1536368114930" TEXT="in eigene Translation-Unit verschieben">
-<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1536368106394" ID="ID_1324169393" MODIFIED="1537400207423" TEXT="in eigene Translation-Unit verschieben">
+<icon BUILTIN="pencil"/>
 <node CREATED="1537059357301" ID="ID_1501687281" MODIFIED="1537059360761" TEXT="Beobachtungen">
 <node CREATED="1536368121224" ID="ID_684768731" MODIFIED="1536368139195">
 <richcontent TYPE="NODE"><html>
@@ -31953,10 +31953,10 @@
 </node>
 <node CREATED="1537059265873" ID="ID_798187553" MODIFIED="1537059347543" TEXT="leider merkt man aber die Umstellung auf IterChainSearch">
 <icon BUILTIN="messagebox_warning"/>
-<node CREATED="1536368144661" ID="ID_1266326166" MODIFIED="1537059319775" TEXT="BusTerm_test = 14.3 MB">
+<node CREATED="1536368144661" ID="ID_1266326166" MODIFIED="1537320654812" TEXT="BusTerm_test = 14.6 MB">
 <icon BUILTIN="smiley-oh"/>
 </node>
-<node CREATED="1536368166242" ID="ID_1222359374" MODIFIED="1537059337516" TEXT="EventLog_test = 7.4 MB">
+<node CREATED="1536368166242" ID="ID_1222359374" MODIFIED="1537320670162" TEXT="EventLog_test = 7.8 MB">
 <icon BUILTIN="smiley-angry"/>
 </node>
 </node>
@@ -31966,7 +31966,8 @@
 <node CREATED="1537059868337" ID="ID_138143272" MODIFIED="1537059878979" TEXT="es kann daher ein direktes Objektfeld bleiben"/>
 <node CREATED="1537059879759" ID="ID_893108945" MODIFIED="1537059904472" TEXT="alle Suchpr&#xe4;dikate sind Lambdas -&gt; Template Argumente"/>
 <node CREATED="1537059905107" ID="ID_133126017" MODIFIED="1537059924085" TEXT="d.h. auch die Such-Funktionen m&#xfc;ssen nach hinten in das CPP gedr&#xfc;ckt werden"/>
-<node CREATED="1537059925313" ID="ID_1283278546" MODIFIED="1537059940483" TEXT="Problem Var-Arg">
+<node COLOR="#338800" CREATED="1537059925313" ID="ID_1283278546" MODIFIED="1537400192425" TEXT="Problem Var-Arg">
+<icon BUILTIN="button_ok"/>
 <node CREATED="1537059941287" ID="ID_1072965326" MODIFIED="1537059944938" TEXT="Argument-Match"/>
 <node CREATED="1537059945310" ID="ID_1104771437" MODIFIED="1537059950057" TEXT="RegExp-Sequenz"/>
 <node CREATED="1537059950597" ID="ID_1688685593" MODIFIED="1537059976646" TEXT="beide erzeugen aber einen STL-container als Intermediary">
@@ -31975,8 +31976,8 @@
 <node CREATED="1537059978146" ID="ID_1403964414" MODIFIED="1537059984405" TEXT="d.h. man kann dazwischen schneiden"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537059994048" ID="ID_1556879726" MODIFIED="1537059997529" TEXT="Umbau">
-<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537059994048" ID="ID_1556879726" MODIFIED="1537400219755" TEXT="Umbau">
+<icon BUILTIN="pencil"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1537060007341" ID="ID_137118669" MODIFIED="1537060024165" TEXT="eigene Translation-Unit EventLog.cpp anlegen">
 <icon BUILTIN="flag-yellow"/>
 </node>