For the follow/movement keys, I went into my WoW-->Options-->Keybinds and set move forward to "E".
On my alts, I set one of my hotbar buttons to "E" and added the macro "/follow focus" to the "E" button. So every time I move forward and let off the key, my alts refollow.

For the heal thingy, it's something like this:

/cast [nomod][target:focus] lesser healing wave
/cast [mod:alt][target:focus] healing wave
/cast [mod:shift][target:focus] chain heal

Then just modify your [target:blah] to target whoever you want.