DirectAdmin version 1.62.0 released a few days ago, on the 9th of June, 2021, added the possibility to select the specific domains when creating backups.
The backup process remains the same as described in How to Create/Restore a backup of your account in DirectAdmin The only thing that changes is that now you have the option to select specific domains. On the backup page, click on the “Selected Domains” option instead of the default “All Domains” one and you’ll have the possibility to select the domains from the list:
For example, if you have domain1.com, domain2.com, and domain3.com in your account, you can backup only domain2.com for example. This can be useful if you want to save backup space, or you want to transfer only a specific domain to another hosting provider.
Select the desired domains, close the popup window and you are ready to go.
Resources:
User Backup: select included domains