hi, i am a new to otrs. i have just had 2.4.6 deployed on a very high spec. linux box and while setting up email accounts through imap, thru the admin panel, i encountered a few issues that i am hoping someone would be able to answer: 1. what is a sub-queue and in what circumstance would one need it? does a new queue have to be a sub-queue of "raw"? 2. i am unable to ascertain the difference between roles and groups. can someone throw some more light on the same? 3. can multiple groups be assigned to a queue? i could only locate a drop-down to select a single queue. 4. even though i have configured several users, i can not see them from the "users" link. i have to visit "users <-> groups" link to list and configure users. 5. deactivating a signature disallows email ticket sending. is there a way to disable signature inclusion; from maybe sysconfig? regards, saurabh pande.