I have a sidebar on my site, and was wanting to know if there is any way to get the board stats/who's online in my header to show. I tried posting the code, of course, but it doesn't show who's online/is just blank.
AdminCP > Templates > Your theme's templates > Index Templates > index > find {$boardstats} and move it to just below to {$header}.
Edit: I'm sorry, I just read that you want to show it on header (not in index) That needs to edit ./global.php file
This has already been posted before, you will need to edit the global.php and duplicate what index.php do to show the board stats, only after you do so you will be able to show the board stats globally.