Ok, just understood what Boofo suggests.
You need to edit plugin
QR Profiles and add at the very end (but before }, it should be last):
PHP Code:
$template_hook['profile_sidebar_first'] = '<center>'.$userinfo['qr'].'</center>';
You could also go without centering QR code, in that case just use this code:
PHP Code:
$template_hook['profile_sidebar_first'] = $userinfo['qr'];
I started using this, as this is one manual template edit less.
Thanks Boofo for idea. :up: