So, I attempted to add the instrument via Instrument Manager
Tools->Instrument Manager
Here I selected 'New', an instrument editor window opens
What would be the master instrument? AAPL AAPLU, or AAPLU9?
Instument type I set to Future
What do I set for Rollover period? Exchange? It also asks me for a symbol map. What should I set for these values or where can I get this information?

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