Ok. This is all command line type of stuff.

Either ssh, or get to terminal by finding the terminal link in mynode. I think it's on the status page.

You can login as admin and your password.

Then can switch to the Bitcoin user via

`sudo su - bitcoin` again giving your admin password

Nav to the folder

`cd /home/bitcoin/.Bitcoin/`

List files

`ls -la`

You should see either wallets with a wallet.dat inside or youll have directories/folders for wallet.dat and joinmarket_wallet.dat

Traversing into a folder `cd foldername`

Going up to parent `cd ..`

Renaming a file `mv currentname newname`

If it's a fresh setup and you aren't using those wallets (or joinmarket or jam for coin join) then they can be renamed or deleted.

To close out a session or back out from a user, use the command `exit`