BDE-ODBC-connect to adabas / multible connects

did anybody get properly connected to a adabas-database v10 or v11
with paradox?

i can connect, build a form, but after saving it and re-open it,
paradox can not see the index defined for the detail tables.

another problem is, that the bde connects as multible users to the
adabas database, so that for running one form, many user-connections
to the database are needed.
this conflicts totaly, if the user is configured to allow only one
connect per time!

i hope, someone can point me in the right direction!