I did some coding (copy of update.php and config.php), so that everybody who uploads his char from the website can modify the display-options for only his chars just after upload. Because only then the chars are known by the system. So there's no extra authentification needed!!
This was my first coding in php, so I don't know if it's good enough for here...
In the last col of my "DispMan"-addon there now also is the possibillity to choose the mainchar, which is stored in "account_id":
Mainchar_account_id = mainchar_member_id*100
Twink_account_id = mainchar_member_id * 100 + twink_member_id
If Mainchar_member_id is '5':
Mainchar_account_id: 500
Twinks_account_id: 5xx
and so on...
So it's easy to calculate back for sorting for mainchars/twinks, which is already implemented (see profiler.fettator.de col-header "Mainchar-Sicht")
It's all made in german (with some english comments) and not completely following the addon-building instructions, because my modified update1.php with the included addon "DispMan" is still in the admin-path even if DispMan.php is right located under Addons. But maybe it will help on developing for next version, at last as an idea??
I can post the files to someone interested.
Sorry for language-errors...