Different DNS for some clients

Hello,

I migrated from Adguard home recently to NextDNS services (by the way much better)

My DNS is configurated directly in my router (openWRT LuCi), I can see all my clients etc here,

The only thing I don`t find here is an option to create specific rules for each client.

For example, as I live outside my mother country, I use another DNS service to unblock some streams and in Adguard was possible to create for example a specific rule that permits me to use other DNS.  The rule is Ip 192.168.8.99 (google TV) use DNS over TLS or IPV4 XXXX, is that possible with your DNS service

Thank you