... maybe like the attached indicator? It allows you to set the review range to something else than 3 as well, like 5, or 12
EDIT: Slight update, to allow the review time frame to be different from the chart time frame.
EDIT again: changed to more visible arrows, and corrected the indication to consider the chart bar high/low relative the review time frame bars. Note that it make best sense with a review time frame at least as high as presentation time frame (or use 0 for same time frame).