Excluding days from availability report

Excluding days from availability report

Hi, 
We are looking to have an availability report but with custom time per day ( i did this) and custom days per week "excluded weekends days" (i am not able to do it).
Is there a way to do that in opmanager?
We need to generate an availability report in monthly bases excluding the weekends, also a yearly report, and we might also exclude public holidays.
  we are running build 9410.
Thanks

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