[otrs] Company Tickets

Hello and - as it's the first time I'm posting in this list - a great accolade to the OTRS-Team. I've wondered about the "Company Tickets"-button in the CustomerUser-area (customer.pl). What different options does this button realize the "MyTickest"-button doesn't? Does it have anything to do with the Customer <-> Group configuration? Thanks in advance Markus Nagel