I use the following setup with Hotkeynet.

QWEASD are blacklisted for main only.
Shift + QWEASD move all clones and the main.
Alt + QWEASD move only clones, not the main.
Ctrl + QWE are different formations, with Ctrl + ASD being the reverse formations to stack up again.

This gives me plenty of options without having to move a hand over to the arrow keys, which is what I used to do before this setup.