Also known as: How to deposit using a DBS account via the non-DDA method / How do I transfer USD or HKD using a DBS/non-DBS account?
Sidenote: The supported methods of deposit can be found here
Answer: Yes, you may. You can refer to the table of fees for withdrawal as they are the same.
Non-DDA for SGD transfers
To deposit SGD using a DBS or non-DBS account via the non-DDA method, go to Trade > Securities Account >...