Quote - LOL

I assume one has to mark the area, and then hit Apply? And what are the two Pen Type buttons?

Clear enough questions? :rolleyes:

I had not noticed the two pen types.  I have used whatever the default pen is and you completely white/grey out the area you wish extra samples to be taken in..  It's easy and works real well.  You have it correct, mark and apply. once it clears up you can remove the sampling and return to normal sampling.