Is it possible to open in a visual backtest charts from different timeframes?
And put then custom indicators to the charts?
with mt4 you can add more then 1 indicator during backtesting,
how do we do this with mt5? I searched the platform the internet but cant find anything on this.
By applying a pre-configured template with all the indicators you want and saving it with the same name as the EA being tested.
However, your query is not the same as the OP's original query which was in reference to opening multiple charts of different time frames, not about adding extra indicators to the primary chart.