IC Drawing: cross-hatch arbitrary region?

[WPONG]

I have a drawing that I need to cross-hatch in arbitrary regions for different reasons.  What is the best way to achieve this?  See screenshot below (ignore black arrow).

1.  Circular region:  I drew a circle, then hatched it (left of the screenshot)

2.  The 'racetrack' region I've cartooned.  I'd like to x-hatch the entire region indicated with red arrows.

3.  Arbitrary regions (that may be more free-form, albeit defined with 2d dimensions).

Trying to learn the best approaches here.

Thanks, 

--Will 

[WPONG]

Embarrassing.  Found what I need. (need... more sleep)

For #2:  Annotation > Hatch works most of the time

For #3: Still not clear of best approach -- any advice welcome, particularly when it comes to using existing lines of the view to define the boundary.  Would be helpful to be able to project edges as in part sketch mode (perhaps there is a method?).

Edited July 7, 2022 by WPONG