Yes it is now possible (check your version nevertheless) with this BAPI, the good old trick of using a BAdI to set the status was forbidden in a KBA 1951302 - Document parking through BAPI_ACC_DOCUMENT_POST (older than the note) but just try it. (there is a reference note 2083799 - Composite SAP Note: Postings with Accounting BAPIs)
Regards,
Raymond