can't view all of my map
Having discovered that I can't resize the map area so the 'old' bit of the map stays in the north west (i.e top left) corner of the map area, I took matters into my own hands and deleted all the map borders and those green lines that surround the map itself.
I then drew the lower bit of the map. In terms of practically I wanted to group the mass of the bits of land to make it easier when placing terrain and mountains. This is when I hit a problem - I selected the Land sheet only to find the original map Land showing. I'm attaching the FCW in case anyone can unpick the mess I'm in.