Backtesting

 

Hello i need some info if it is possible,  i have made a demo account for mt5 and i copy the main mt5 folder to have 2 terminals on the same computer . It is working i have the demo and the live account on 2 terminals but when i copy the EA's in the data folder of the demo terminal , the terminal doesn't see the new content , even if i compiled and refreshed , restarted the second terminal. Can somebody explain me what i am doing wrong ?. I wanted to do this for back testing the EA from 2 terminals at once if it is possible on different assets and different time frames.

Thank you