How do you force pin location in AHDL?

I have done it in the past, perhaps with MaxPlusII and not Quartus.

But I think it can be done (if not it should be a added feature).

SUBDESIGN clk_divider

(

sw0 : input @ y11 ; --y11

)

I know how to use the assignment editor, so I can make it work, just want to make life easier.