Make a minor addition to an existing .lua indicator file (MarketScope/FXCM Trading Station)

Take a look at the attached indicator lua file for Marketscope Alerts are issued based on interaction of two OBOS oscillators I require a filter inserted so that any alerts will only post if an addition condition is met; namely that a user specified CCI numeric value is in-play, or has been present, a user-specifiable no. of periods prior to the alert. I have also enclosed a doc that was issued as a brief to the original coder which will help explain the current workings of the indicator for clarification purposes