ods pdf table of contents - byval and missing contents

[xxformat_com]

Hi,

I have to question with respect to the table of contens in PDF files when using the table of contents options.

First question

%let xxdemo = ...;

proc format;
    value $sex 'M'='Male'
               'F'='Female';
run;              

proc sort data=sashelp.class out=class;
    by descending sex;
run;

data class;
    set class;
    dummy=0;
    format sex $sex.;
run;

options nobyline;

ods pdf file ="&xxdemo./reporting/test.pdf" startpage=no contents;

ods proclabel 'Level 1';

title '#byval(sex)';

proc report data=class  contents='Level 2';
    by descending sex;
    column dummy sex age;
    define dummy  / order noprint;
    define sex    / display;
    define age    / display;   
    break before dummy / contents = 'Level 3' page;
run;


ods pdf close;

In the output, we can see that the table of contents include Sex=Male and Sex=Female. How to replace it  with a value like the one in the title i.e. #byval1?

Question 2

%let xxdemo = ...

proc format;
    value $sex 'M'='Male'
               'F'='Female';
run;              

proc sort data=sashelp.class out=class;
    by descending sex;
run;

data class;
    set class;
    dummy=0;
    format sex $sex.;
run;

options nobyline;

ods pdf file ="&xxdemo./reporting/test.pdf" startpage=no contents;

ods proclabel ' ';

title '#byval(sex)';

proc report data=class  contents=' ';
    by descending sex;
    column dummy sex age;
    define dummy  / order noprint;
    define sex    / display;
    define age    / display;   
    break before dummy / contents = ' ' page;
run;


ods pdf close;

In this example, the text of levels 1, 2 and 3 are removed. but we still get the lines in the table of contents created with the contents option. How to remove them?

Thanks