SiloeSid, no - a square pad only gives 4 different directions, as parking parallel to the left hand side of the square is co-incident with parking parallel to the right hand side of the square (assuming you park in the centre).
In general, for a n-sided polygon shaped helipad, the possible (neat i.e. parallel to a side) parking directions are:
n (if n is odd)
n/2 (if n is even)
Matthew