the easiest way to use jamba w/ keyclone would be to do 2 things:

1. create an /assist macro
2. set the wow keybind for 'interact with target'

this way, you can click on the body ... hit assist... your alts will get the target... then hit the key all your wows have bound to interact-with-target. you will need to spam it a few times as only one wow can loot at a time.

this is also very useful for vendors. target vendor, assist, and interact. that will pop up the vendor for all your wows (i also have mine set to auto-junk greys)