Custom byline for proc sgplot with advance=bygroup

[MDaniel]

I can't seem to get the display I need for the output of sgplot with a by-group option. The output should go to ODS PDF.

If I don't use options nobyline the text displayed above each plot is "#byvar1=#byval1" and I would like it to be only "#byval1". If I disable byline, and try to set the plot title to title "#byval1" then only the first plot gets the title printed above. Here is my code

/* prepare the data */
proc sort data=sashelp.class out=c;
   by sex;
run;

/* ODS options */
option papersize=(10in 5.63in) ;
option nodate nonumber;
ods escapechar = "^";

options  leftmargin = .1in
 rightmargin = .1in
 topmargin = .1in
 bottommargin = .05in ;

ODS _ALL_ CLOSE;
TITLE; 
FOOTNOTE ;

ODS PDF FILE="output.pdf"  
	style = Styles.Pearl NOBOOKMARKGEN nogtitle nogfootnote dpi = 300 ;

options byline;

ods graphics / width=4.5in height=1.9in;
ods layout gridded columns=2 rows=1 advance=bygroup;

proc sgplot data=c ;
   scatter y=weight x=height;
   by sex;
run;

ods layout end; 
ODS PDF CLOSE;

This produces the following output:

If I change the following in the code:

options nobyline;

proc sgplot data=c ;
   scatter y=weight x=height;
   by sex;
   title "#byval1";
run;

I get this output:

Is there any way to achieve what I want to do?

[MDaniel · Accepted solution]

The fix is amazingly simple and I should have thought about this earlier - gtitle needs to be enabled when defining the ODS. Code would look like this:

ODS PDF FILE="output.pdf"  
	style = Styles.Pearl NOBOOKMARKGEN gtitle nogfootnote dpi = 300 ;
	
options nobyline;	
	
proc sgplot data=c ;
   scatter y=weight x=height;
   by sex;
   title "#byval1";
run;