Simple answer is yes, however you are not actually trying to meet an ATAR cutoff. The uni will offer a set number of places for each course, so you are competing for a spot. UAC lists students who applied for that course from the highest ATAR to lowest ATAR, and so the 'cutoff' is that point where all spots have been filled up (hence, the ATAR of the student who received the last offer becomes the cutoff). The bonus points help you move up in that list of highest to lowest. If the uni permits bonus points for that course, then UAC will automatically include the bonus points with your ATAR when ordering the students who have applied.