You do not need to transfer dc to steemwallet , it is already on your steem. Think of your wallet/steem account as your phones sim card. And the Steem Blockchain as your Cell Phone Service Provider. The last piece of this equation is The app you use to interact with the blockchain being a cellphone.

You can pop your sim card in and out of different phones, but it will always be the same phone number on the cellphone service provider bill. just like your steem account can use the steem wallet, and steemit, and steemengine, , they are designed to show the same information in different ways but its all the same central piece of info as long as you have your private keys etc...

The reason you have to deposit / withdraw hive, is so they can maintain their 1% fee on their service to help keep their product alive. personally i think its the best dex fee plan because u can keep ur money in there and make endless free trades. .

But basically, these tokens are in your wallet already... If you want to stake them, you can click the stake button, i dont know much about the token in question just talking ingeneral. i hope this isnt too confusing.