Thank you Hemanth for your reply,

Actually we have different requirement rather than assign the task to the skilled person. we need the assignment to be for all the work group in the same time. we have searched for the possible solutions:

- We may change the my tasks screen to show the tasks assigned to me or assigned to my work baskets combined (but this will not affect on the reports which we don't recommend,

- To use the for each split activity to route the assignment to all the uses in the group on the same time (if you can help us with how to apply this )

so if any one can recommend one solution or have different solution for this specific case,

Thank you all