Custom studie sierrachart

On the sierrachart platform, I'm trying to change a parameter on a sierra chart subgraph. It is a volume profile which automatically plots the levels of the volume profile (VPOC, VAH, VAL) It automatically plots the levels of the past (previous days) but some plotted levels are invalid because it was then hit by the price. I want the levels not to be drawn from when the price was touched on the following days. I have an algorithm on sierra chart which uses these levels as a target, but only for the day before. I want that once this modification is made it can take into account all the levels of the past and not only those of the day before