I was recently asked how to Hatch or Solid Fill a number of closed linestrings that represent a “surface area” with holes in it (read Swiss Cheese) because the Track Region Command “doesn’t allow you to do this” and the Solid Fill function only applies “to a single linestring”
A backdoor fix to this was added to the software a long time ago whereby if the Track Region command creates a linestring that has a name starting underscore underscore i.e. __Test - it would track the interior regions as part of the boundary being found.
The video shows you how