[Melissa Siobhan]

I am not familiar with how Heller has it described on their website but you can do this using mail Quick letters.

You create a query for each group you want to mail to.
You enter them in heirarchical order on the segment tab (if someone is in 2 groups they will go into the first one not the second one)
You use quick letters to assign the appeal and package.

You can then either use the data file created from quick letters for your mailing or you can query on assigned appeals to export a data file.