Hide Graphics in a Multi-Symbol Multi-Indicator Multi-Timeframe EA

[Jarbas]

I am developing an EA that trades multiple symbols at a time.
I intend to also use indicators for each symbol in multiple timeframes

When I set the symbols and indicators, MT5 opens 1 graphic for each Symbol/Timeframe-Indicator
Is there a way of preventing that ?

Does that saves memory and resource ?

How can I do it ?

Thanks in advance