In ChartSignals, allow optional data sources e.g. portfolios, screens
For example, when a user is on the Chart Signal page, users should be able to select a portfolio or screen and see any companies that have particular chart signals (eg. see stocks in Portfolio X that have the Death Cross).
This would be a good alternative to including chart signals in screening rules, which (at present) is not possible. However, ChartSignals would have to be all-embracing. It would be better to allow the user to construct his own signals.