after activating and setting up the expert advisor it will automaticly do trades? based on my settings?

 

yes, most of them, if the conditions programmed apply.

there are some for other purposes, eg. renko, so called "multimeters", etc.

 

BTW "setup" includes several things which influience EA trading.

- enable live trading in mt4 options, DLL calls if necessary

- attach it to a specific chart, timeframe

- load or enter your settings


And the terminal also must be connected to the broker