Can anyone explain to me how I would create a world map in ArcMap that extends your data beyond 180? I'm using a Pseudocylindric projection, and need to 'fill in the corners' of the page. See the screenshots below to illustrate what I mean. One shows that the map data is cut off at 180°, the other is a screenshot of a map that extends all the data past 180 to the edges of the page.
Thanks for any help provided.