How to default certain fields while creating new supplier site

Summary:

We have requirement to default values for below mentioned fields in supplier site page while creating new supplier site from UI to avoid manual selection for those fields as these values are same for almost all supplier sites.

All these fields should be defaulted as well as editable.

Site level-Invoice tab
  Invoice Currency
  Payment Currency
  Priority code  
  Quantity Tolerance
  Amount Tolerance

 Site Assignment tab (Default based on BU selected)
  Ship to Location
  Liability Distribution
  Prepayment Distribution
  Bill Payable distribution

is there any existing functionality to achieve this requirement?

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