Is it possible to do In-line Signing for local root zone

[Mundile]

I have local (private) root domain domainX.example and subdomains : subdomainY.domainX.example and subdomainZ.domainX.example. I can do chain of trust if all zones are In-line signed
zone "domainX.example" {
        type master;
        file "named.domainX.example";
        key-directory "/var/named/keys/zones";
        auto-dnssec maintain;
        inline-signing yes;
    };
zone "subdomainY.domainX.example" {
        type master;
        file "named.subdomainY.domainX.example";
        key-directory "/var/named/keys/zones";
        auto-dnssec maintain;
        inline-signing yes;
    };
zone "subdomainZ.domainX.example" {
        type master;
        file "named.subdomainZ.domainX.example";
        key-directory "/var/named/keys/zones";
        auto-dnssec maintain;
        inline-signing yes;
    };
Or  domainX.example MUST be manually assigned.

Sent from Mail for Windows 10

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