To install the expert advisors in MT4 and activate the trading follow these 3 steps:
(1) Download the .zip and extract the files. Then move the folders on these path:
 BacktestMarket_Expert_Advisors-demo  => /MQL4/Experts
 Templates => /MQL4/Files
 drawdown => /MQL4/Files

(2) Open a chart of EURUSD (or another one) and add here the Open Charts and Apply Templates expert advisor. 
In expert advisor's Common window, flag Allow live trading. And in EA's Input window write the correct name of the brokers Symbols.
Then click OK.

(3) In about 5 minutes the 'Open Charts and Apply Templates' expert will open automatically all the charts, 
will apply to them their template that will load the right expert advisor in each one.
Finally close the initial chart (EURUSD) which contain Open All Charts and Apply Templates. 
Now all the experts will be activated to trade.