batch cancellations

[igkoh]

Are there batch cancellations like dm.send_contract_batchorder extending usage of dm.send_contract_order?Or can one apply filter for direction and offset in cancel_all_contract_order? 
dm.cancel_all_contract_order(symbol='BTC')  

Best regards,
Ingyu

[davidebaldini]

Not an answer to your question; rather another question.

Have you found out if it is possible to submit market orders? The API documentation only mentions limit orders.