However, if you are running Ambient Antu (v7.1) or Bullish Bunene (v7.2), you may use this article to upgrade to the new BitGo module, thereafter enabling the new wallet options.
Wallet backups and recovery are much easier with BitGo than with using node wallets.
Since you do not need to run node wallets for either cash-in or cash-out services with BitGo, for new servers, this means you also would not need to create a block volume along with your droplet. (Infura is a light wallet option for ETH as well.)
An advantage to using node wallets instead of BitGo, however, is that BitGo assesses a 0.25% fee per outgoing transaction, and node wallets do not depend on a third-party service, thus offering greater uptime.
Updating the BitGo module
In your server's terminal, copy and paste the full command below:
curl -sS https://raw.githubusercontent.com/naconner/lamascripts/master/backports/bitgo/bitgo-update.sh | bash
Once done, you should see 'Patch complete!'
Log into your admin or refresh the page if it's already open.
If you now observe expanded coin options under the 'Third Party Services > BitGo' tab, you're ready to follow the BitGo setup article.