PageSetup.GutterPos procedure builder

PageSetup.GutterPos (Word)

Returns or sets on which side the gutter appears in a document.

wdGutterPosLeft - On the left side, wdGutterPosRight - On the right side, wdGutterPosTop - At the top.
ActiveDocument.PageSetup.GutterPos = wdGutterPosRight