create a /follow macro for each clone. attach it to an action bar button (or however you do it). make them all use the same key.. and make sure your main does not do anything with that key*

then just hit the key and your clones will follow you to the loot... you will still have to go to each clone window and click to loot, but that's fairly simple if you are using keyclone's 'focus follows mouse' capability

as for passing mouse clicks... no. nothing yet, sorry
same with auto-looting... nothing yet that i am aware of

* this is for a basic setup... more advanced setups do many different things with focus and targeting