DislikedHi vidal,
I think you should use the ATR option of the EA. When setting the EA to use ATR values for TP & SL the adjustment to the TF and trading range of the pair will be done automatically.
There is a little math to do with the setting of the ATR, but it is documented in the MQ4 file.
If you need my assistance don't hesitate to ask.
BR
Dani M.Ignored