Combine positions to single box?

[Ekhart]

What I am trying to do is an org chart from an excel data file that does what the wizard largely does now, however I would like to find a way to have it combine all of the 'like' positions in to a single box, rather than creating a separate box for each position. So rather than 3 separate boxes for 3 secretaries, it is just a single box for the 'Secretary' position that lists the positions numbers (not names in our case) in it, like 90000, 90001, 90002.

Obviously keeping the reporting structure in tact so if there are 2 secretaries under 1 supervisor they would be in their own box from secretaries under a different supervisor etc.

I don't know if this is possible, and if it is which route is best whether it be a template thing, coding, etc.