task assignment Round Robin

I want small software or Local HTML output page When tickets are assigned to Engg. they should be assigned in a circular fashion to the agents who are available in that group. Eg: I have 7 queues and want Round-robin method equitably distributed of task to Engg in those queue Let say I have2 queues for Tier3 and tier2. I have 2 engg in tier 3 Now I want ticket to assigned to engg in tier 3 in roundrobin method First ticket to first engg , Second to second engg and third INC first engg name again And same method to be used in other groups as well. Currently i am using Excel with macro to do this. attaching this for you reference I should be able to edit name of these queues and Engg