[TYPO3] Records from own extension in "insert record"

[Matthias Kurz]

Hi list,
I am struggeling with the integration of records from my own plugin in 
the "insert records" element. I have

t3lib_extMgm::allowTableOnStandardPages('my_extension_table');
t3lib_extMgm::addToInsertRecords('my_extension_table');

in my ext_tables.php. My records show up in the backend selector box and 
they get selected but there is no frontend output at all. I was trying 
to learn from tt_news but I just could not find the right way. Any hints?

Matthias