On the usage restrictions tab:

In ‘Products’: select all 12″ pizzas
In ‘Product categories’: select nothing

On the Free products tab:

In ‘Free products’: select the SM donair, fries and poutine.
Tick ‘Select one’

On the usage limits tab: leave everything empty

On the Misc tab: tick ‘Auto coupon’

Same goes for the 14″ LG promos