Accessing Real-Time Indicators within a Strategy

[Prospectus]

I am writing an automated trading strategy to take signals from 3rd party indicators. These indicators do not work on historical data, only real-time. Typically, the user starts a chart in the pre-market and watches all day.

Now the problem: I reference the indicators in my strategy, create a new instance and use it for calculations. But if the strategy is stopped and restarted, it loses the saved indicator values that are still displayed on the chart, causing the strategy to take trades that are different than what the chart shows.

The question: Can I access the values that are being plotted by those indicators directly, without creating a parallel instance of the indicator inside the strategy? That way I could access the saved "real-time" data on strategy restart...