[TYPO3] flexform wizard (edit, add) problem ...

[Kay Strobach]

hello list,

i created an extension with an flexform, and have a problem with the add 
wizard.

In some hours of searching i found out, that flexforms use nearly the 
same configuration options like other fields via tca (no irre, as i 
understand)

So i created a flexform with a field to select a record from the current 
page. To increase the usability I added a wizard, to create a new record.
The created record is not selected in the flexform, after saving and 
closing the created record (Point 3 in the list below).

I also tried to set <setValue>set</setValue>, but this doesn't work as well.
like described on 
http://typo3.org/documentation/document-library/core-documentation/doc_core_api/4.1.0/view/4/3/#id4284746

Do you have any suggestions how to make the following scenario possible:
     1. create content record
     2. hit the plus(add.gif) in the flexform, create new record of type 
tx_pbsurvey_item
     3. After saving and closing the record from point 2 select the 
created record in the list ...


Many Thanks
Regards Kay

Versioninfo:
     Typo3 4.2.1
     PHP 5+


Part of the flexform
...
     <selectedquestion>
       <TCEforms>
          <label>selected Question</label>
          <config>
            <type>select</type>
            <size>1</size>
            <minitems>0</minitems>
            <maxitems>1</maxitems>
            <foreign_table>tx_pbsurvey_item</foreign_table>
            <foreign_table_where>
              AND tx_pbsurvey_item.pid = ###CURRENT_PID### ORDER BY 
tx_pbsurvey_item.sorting
            </foreign_table_where>
            <selicon_cols>6</selicon_cols>
            <items>
              <numIndex index="0">
                <numIndex index="0">«»«» no Question selected 
«»«»</numIndex>
                 <numIndex index="1">0</numIndex>
                  </numIndex>
                </items>
                <wizards>
                  <add>
                    <type>script</type>
                    <title>Create new Record</title>
                    <icon>add.gif</icon>
                    <params>
                      <table>tx_pbsurvey_item</table>
                      <pid>###CURRENT_PID###</pid>
                      <setValue>prepend</setValue>
                    </params>
                    <script>wizard_add.php</script>
                  </add>
                  <edit>
                    ...
                  </edit>
                  <list>
                    ...
                  </list>
                </wizards>
          </config>
        </TCEforms>
      </selectedquestion>
...