How to define recursive Child States in the Language Designer

I'm trying to create an Oracle pl/sql lexer/parser.   I think I have th elexer portion down.   Howeve, I trying to add in addition child states to handle the following:

begin
   <code>
end;

-- -----------------------

for i in 1..10
loop
   <code>
end loop;

-- -----------------------

while x
loop
   <code>
end loop;

-- -----------------------

case x
    <case code>
end case;

loop
   <code>
end loop;

-- -----------------------

if x
   <code>
end if;

 where each of these code fragements is a beginning and ending "delimiter" for outlining use.   <code> can contain any valid pl/sql code including any of the above code fragements.   I thought I doing this correctly but when I add in the scopes as child states to the Default scope, the lexer breaks.

Can this be accomplished with the current language definer tool?