Does staad support the design of W8x10 D (double profile)?

I am updating an old warehouse and I need to strengthen the existing end rafters. I currently have an W8x10 D and I'm getting a warning stating that : WARNING: DESIGN OF SECTION FOR MEMBER #    613 IS NOT SUPPORTED. Does staad support double wide flange sections? If not what would be a work around for this? Also I'm using AISC design code.

Thanks,

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