Roseanne,
If you are using PPT 2003 then the answer is no. What I always do is to
insert a table of only one row, insert the tabs in the cells as appropriate,
then insert rows using right click and insert rows. The rows you insert
should be an identical copy and contain all the tabs. Before you insert the
extra rows be sure to adjust the hight of the row first.
In PPT 2007 this has all changed and you can insert tabs pretty much like
you do in Word.