Serial Enable Maxim RS485 Pin If I want to use a MAXIM 485 for a RS485 communication, is there any option to include the Control DE and RE' pin in a natural manner in the code, instead changing the control pin everytime I made a Serial.print()?

Should I overload the HardwareSerial object in order to add those pin operations everytime?
No, there isn't - you have to do it manually. And don't forget to flush.

You could inherit HardwareSerial if you really wanted - or just write a couple of functions to do the sending and controlling of the DE pin.