Allow staff users to easily identify as on-duty/off-duty

[clark238]

Apparently this has been wanted by users since 2003:
http://forums.kayako.com/showthread.php?t=906

It would very useful if staff users could identify themselves as being on-duty or off-duty so that they don't receive email alerts for new tickets (or other alerts for that matter) when off-duty. I envision logging in would automatically set the user to "on-duty" and then clicking the "logout" link would set them to "off-duty." However, on-duty/off-duty should not be determined by having a current session because a user's session might time out even though they're still available to respond to tickets.

Thanks for listening