BIND supports several extensions to the standard zone file format, known as directives, all of which start with $. Micetro is aware of these directives, but doesn't support adding or editing them.
The $INCLUDE directive
The $INCLUDE directive tells named to load the contents of another
file as part of the DNS zone. In Micetro, the $INCLUDE
directive is displayed as a grayed-out, read-only DNS record. The include file is
displayed on the DNS page as an Include
zone type.
To open the include file, double-click the $include statement.
The $GENERATE directive
The $GENERATE directive is a shorthand method of entering multiple similar records. For example:
$GENERATE range template
Where range is a numeric range, such as 1–254, and
template is a record template. A record template resembles a
normal record; however, it does not start on the beginning of a line and in places
where a number from the range is desired, a "$" is used as a placeholder.
For example:
$GENERATE 1-254 $.0.168.192.in-addr.arpa. PTR host-$.dsl.example.net.
This creates 254 PTR records, all of similar format, like this:
1.0.168.192.in-addr.arpa. PTR host-1.dsl.example.net.
2.0.168.192.in-addr.arpa. PTR host-2.dsl.example.net.
[...]
254.0.168.192.in-addr.arpa. PTR host-254.dsl.example.net.
While these records are generated by named when the zone is loaded,
they will not be displayed in the zone file. Micetro
only the $GENERATE directive as a grayed-out, read-only DNS record.