A user’s “default DNS domain” is the dns domain that DNS records belonging to network connections will be created in (if the engine is linked with the registry and can use DNS services). DNS records can be managed at https://origo.io/cockpit#dns.
Are you sure about this? All your data, including any servers, images, etc. on Stabile Cloud will be irreversibly deleted. Please make absolutely sure this is what you want to do!