It would be helpful if you posted code to show where you are at but as a pointer
Code:
With Selection.HeaderFooter.PageNumbers
.NumberStyle = wdPageNumberStyleArabic
.HeadingLevelForChapter = 0
.IncludeChapterNumber = False
.ChapterPageSeparator = wdSeparatorHyphen
.RestartNumberingAtSection = True
.StartingNumber = 1
End With