unclosing free hand selection tool

[dannyhealy1]

I'm trying to remove the background from an image using >freehand selection tool>polygon.  I seem to get to a point in the image though where the selection tool closes and the marching ants appear.  How do I unclose this so that I can continue to select my object?

[A_B_C]

Have a look at the Mode buttons in the context toolbar. Though there is no way to “re-open” the polygon you created once the “marching ants” appear, you can always expand your selection by choosing Add and drawing a new polygon. The area enclosed by this new polygon will be added to the area enclosed by the “marching ants” border.