Di I need to add EMA to chart?

[monocska3310]

My question is simple, but I am a beginner.

My EA should open positions based on the 50 EMA.
My question is,
do I need to add the 50 EMA to the chart, or the EA will know where to enter the position without it?
Thanks in advance

[ambrogio]

@monocska3310 you don't need to add any indicator on the chart, anyway you can try with backtesting your EA

[l'andorrà]

If that EMA comes from a custom indicator (ie not installed by default on the platform), you need to install it on your MT$ but there's no need to add it to the chart.