Limit concurrent vCenter tasks

Is there a setting in vCenter to throttle number of concurrent tasks?  I really want to control number of snapshots that can be done at 1 given time.  As to not overload my vCenter.  Lets say no more then 4, vcenterhost would then queue up any other tasks until those first 4 finished or 1 of the 4 have finished as to then start task 5.

Thanks in advance.