Repeating Loads

Is there anyway to clear the STAAD model or prevent loads from repeating?

I have the following code:

objOpenSTAAD.Load.CreateNewPrimaryLoad "Wind & Ice X"
For i = 1 To (X)
objOpenSTAAD.Load.AddMemberUniformForce (i), 4, (WindIce), 0, 0, 0
Next i

The first time I run the Excel macro, I want to create and add the respective loads. I have a function that will not create new loads after they've been created, but it keeps adding the same "Wind & Ice" loads to the same nodes each time I run the macro. Is there any way I can have it update when I have new load information or just clear the STAAD model and rebuild everything each time.

For example, in STAAD, in the STAAD Editor, I see this:

LOAD 5 WINDICE
MEMBER LOAD
7 8 UNI GY -2.57439
7 8 UNI GY -2.57439

I don't see a function for this in the OpenSTAAD V8i (SELECTseries4) documentation. So if anyone has an idea, that would be great