Customisation of Expert Advisor

Is it possible to customise Expert Advisor strategy?
For example:
3-15 cross over code is available which is pre-defined.
How to customise this strategy 8 EMA - 8 SMA with RSI - 5 ?

you can copy the expert advisor code and can create your new custom expert advisor by changing the parameter values of the indicators.
go to artificial intelligence and click on edit expert advisor and view scrip