I have been busy responding to some of your requests. Here are another two features you asked for.
Scoring by helm, rather than by boat, is popular in clubs whose members swap boats during a series. It has been in HalSail for some time and appears as a button on public results pages. However the button can be confusing and it makes no sense unless there are guest helms specified for some of the results. So the button now only appears for those series with guest helms.
Race committees sometimes award redress to a boat that have been prevented from getting a result for some reason outside its control. Typical situations are if a boat is damaged in an incident that was not its fault, or if the crew had been asked to help organise a race rather than take part in it. To cover these situations there has always been a facility in HalSail to award redress in one of several ways which are specified in this FAQ. But in each case the boat is treated as a non-finisher. What if the boat does finish, but the race committee want to award it a number of points different from those applicable to the place it achieved? Up to now the only way was to score the boat DPI, but that implies a "Discretionary Penalty". The word penalty is not always appropriate, so there is now a new scoring abbreviation in HalSail called RDF - Redress given to a Finisher. You can award any number of points you like to a boat scored RDF and it will still take its place in the race as a finisher.