This window allows you to save the texture UV mesh to an image that can then be used to paint the texture. To access this window, click RMB a node.
The directory path and name of the image to save.
The resolution of the image.
The uv attribute to use in generating the mesh (uv, uv2, uv3, etc).
Remove interior of connected regions
The default behavior is to draw the edges of all polygons. Turning on this option will remove the interior edges, leaving only the outlines.
Turning on this option overrides the default behavior to respect the visibility of polygons as set by the visibility SOP.