ISQL Version: WI-T3.0.0.31334 Firebird 3.0 Alpha 2
Server version:
WI-T3.0.0.31334 Firebird 3.0 Alpha 2
WI-T3.0.0.31334 Firebird 3.0 Alpha 2/tcp (IT_test)/P13:C
WI-T3.0.0.31334 Firebird 3.0 Alpha 2/tcp (IT_test)/P13:C
Database:  localhost/3330:oltp30

create collation name_coll for utf8 from unicode CASE INSENSITIVE;
create collation nums_coll for utf8 from unicode CASE INSENSITIVE 'NUMERIC-SORT=1';
commit;

create domain dm_name as varchar(80) character set utf8 collate name_coll;
create domain dm_nums as varchar(20) character set utf8 collate nums_coll;
commit;

-- show domain;  
exit; -- ==> "qq"