FMutcCor Method takes a previously filled Array of fullmoons from GetFullMoons and corrects the time for your zone with the passed UTC_Cor (in plus or minus Hours), as the date occasionally changes.
When the IDE wants to know which array element you want to use, feed it any one of them<g>.
The code template strips it out.
This generates the following code in the embed:
BSTCalH.FMutcCor(BHT:FullMoons,BHT:UTC_Cor)