[otrs] $Self->{ShowCustomerSelection} NOT in Defaults.pm

Hello. In none of the files, including 'Defaults.pm', except in the documentation, I haven't found the following: # ShowCustomerSelection # (show customer selection in phone and change customer view # - disable this for ASP!) [0|1] $Self->{ShowCustomerSelection} = 1; I want to use the 'Multi-Group' configuration option. Has the procedure changed in 1.3.2 or did I overlook it? Thanks.