When i try to use PushPull for a certain boundary, it selects only one small region surrounded by some curves.
In some small regions it is not even possible to click. It says “Unable to determine selected region because selection point lies on an edge”, even though i am clicking inside the region.
In general, in some cases there might be too many lines and it is not very convenient to select each region so it would be better to have an option where we select closed curve/curves and use them as boundary of the region.