I'd like to change this interrupt macro

Guides UI and Macro
1

So I’ve used this generic monk interrupt / cleanse macro

#showtooltip
/cast [mod:shift,@focus,harm,nodead] [@mouseover,harm,nodead] Spear Hand Strike; [@mouseover,help,nodead] [help] Detox; Spear Hand Strike

But as a panda, instead of cleansing (which, while I am tanking large packs, I can accidentally waste a GCD my mouseover cleansing a party member instead of getting the interrupt) I’d like to replace the Mod: shift that switches to focus target to instead cast mouseover quaking palm

Can anyone help me set this up?

Regular mouseover - spearhand strike
Shift + mouseover - quaking palm racial
Remove cleanse mouseover

2 
#showtooltip
/cast [mod:shift,@mouseover,harm,nodead] [mod:shift] Quaking Palm; [@mouseover,harm,nodead] [] Spear Hand Strike
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