Custom_ISelectionFilter_ByID

class CustomISelectionFilter(ISelectionFilter):
    def __init__(self, category_id):
        self.category_id = category_id
    def AllowElement(self, e):
        if e.Category.Id.IntegerValue == -2000011:
            return True
        else:
            return False
    def AllowReference(self, ref, point):
        return False