Secondary Sorting of Leads ?

Secondary Sorting of Leads ?

Is there a way to add/change the secondary sorting parameter for leads ?

For example, we have our lead pool sorted primarily by Lead Status. So our lead lists all "Uncalled" leads at the top, then "No Answers", etc.  

Say we have 20 uncalled leads at the top of our list.  Those uncalled leads don't seem to be sorted in any specific way.  Can I add a secondary sorting parameter to make them sorted by time/date, so newest "Uncalled Leads" are at the top?