HKN can receive mouse buttons with modifiers, but has trouble sending them.

I just put all my healing spells into macros that start with a /click to target the part members (a macro for each mouse button), and put them onto unbound keys. If I click mouse combos in the designated areas of the screen on the master, it isn't duplicated to the same area on the healer to trigger a click healing addon, it sends the correct key to trigger the macros instead.