How to do the area constraint using floorplanner?

[pwq1999]

i want to use floorplanner to constrain my design by using area group constraint, and i want to follow the signal flow to assign my module in different place, now the problem i am encounting is that i found the right edge of floor planner didn't have pin number(pin location information). i think in ASIC design, all four edge of fpga should have pin location.

In this situation, how i can do the area constraint by using floorplanner ?

thanks in advance!