As you know, rDNS PTR should match the hostname (domain) value. This means that the created domain should resolve to the IP address and vice versa.
For this reason, it would be desirable to have the ability to set something like the following in both fields of the template settings, for example:

Default hostname template for new servers: {{random-prefix}}.super.cloud
Default reverse DNS record template: {{random-prefix}}.super.cloud
or
Default hostname template for new servers: {{random-prefix}}.{{ ip-dashed }}.super.cloud
Default reverse DNS record template: {{random-prefix}}.{{ ip-dashed }}.super.cloud

Right now, in the first field, only {{random-prefix}} is available, and other macros, such as {{ ip-dashed }}, etc., are not available.
In the second field, {{random-prefix}} does not work. It is necessary that all system variables can be used in both fields.