Thanks for all answers
As i understand, as per explained by stress river
1.
if the main wind direction is from South to North (Y direction)and other direction is from West to East (X direction) the wind load case will be:
Win1: set up in 'Edit Wind Case 1 of 4" with cosine Y =1
Win2 :set up in 'Edit Wind Case 2 of 4" with cosine X =1
2.
If the main wind direction is 45 degree from North ( direction is from West South to East North and other direction is from West to East (X direction)
load case will be:
Win1: set up in 'Edit Wind Case 1 of 4" with cosine Y =0.707 ( cosine45=0.707)
Win2 :set up in 'Edit Wind Case 2 of 4" with cosine X =1

Only Wind1 and Wind is enough
Am i right?

By doing this, i found that we cannot set up case 2 because when we input 0.707, after running, come back to the windload set up, it remain 1