To transfer EOS to your DSX account balance you will need to use the wallet address and a Memo which is associated with your account. You can find that information in Balances section.
Click Add EOS. You will be additionally notified that a failure to provide Memo with your transfer will result in the loss of funds. Accepting these terms will allow you to see the address and a Memo you should use to transfer EOS to DSX.
Due to the specifics in EOS addressing, Memo - is the ultimate identifier of the sender. If you fail to enter the Memo correctly, we won't be able to allocate your transfer and add it to your balance.