Yes,
That is exactly what I am looking form. I setup the individual shipping mod, but it only allows you to set a shipping price for an item before it is bought. I want to manually add shipping costs to invoices after I know what someones address is. If anyone knows of anything that will let you do this please let me know. I have looked everywhere and can't find anything. I will probably start writing my own hack this weekend. It will be for an older version though so it probably won't be compatible with the milestone 2.