Copying existing Indicator

[Oil_Trader]

Is it ok to copy an existing "Indicator" and change to "Indicator2"

without having to rename the namespaces and other naming conventions?

[NinjaTrader_Bertrand]

Oil_Trader, the proper way to copy an indicator is simply to save it under a new name from the NinjaScript editor (right click "Save As").

Thanks

[Oil_Trader]

If I rename an existing indicator, will it also rename it in the strategies?

[NinjaTrader_Bertrand]

Unfortunately not, you would need to take care to rename references to this indicator then.