Many thanks Wolfgang, 

I can see the 'values' in a table like form, nothing but the values — how can I switch on the 'lines' of the table?

Best regards, 
Heinrich


I took your file t-taccount.mkxl
and
——
% !TEX program = lmtx
\usemodule[t][taccount]
\startTEXpage[offset=5pt]
\starttaccount[title=Bilanz,lefttext=Aktiva,righttext=Passiva]
    \startdebits
        \debit{Gebäude}  {1.800}
        \debit{Maschinen}{1.200}
        \debit{Fuhrpark}   {500}
        \debit{Rohstoffe}  {100}
        \debittotal      {3.600}
    \stopdebits
    \startcredits
        \credit{Eigenkapital}{1.400}
        \credit{Schulden}    {2.200}
        \credittotal         {3.600}
    \stopcredits
\stoptaccount
\stopTEXpage
——