it possible to run parameters on different periods in the same EA?

Forex Trader
114538
I have two questions.

First of all, is it possible to run parameters on different periods in the same EA? And if it is, can you do this in the strategy tester also?

Also is it possible to change an order's magic number?

thanks
Forex Trader
114538
Forex Trader  
First of all, is it possible to run parameters on different periods in the same EA? And if it is, can you do this in the strategy tester also?

Yep.
Pass 0 as timeframe parameter in all relevant calls. 0 means that current timeframe is used. Then choose any available timeframe on EA chart or in the tester.

Also is it possible to change an order's magic number?
Nope.
Forex Trader
114538
Forex Trader  
no I meant 2 different parameters on 2 different periods in the same EA. is that possible?
Forex Trader
114538
Forex Trader  
no I meant 2 different parameters on 2 different periods in the same EA. is that possible?
Quite possible, yes.
"MQL4: Timeseries access"
Forex Trader
114538
Forex Trader  
okay, well how would I backtest an EA with an Ima set to 15 minutes and a custom indicator set to 1-hours?

is that not possible because when I try to test the strategy metatrader freezes up.
Forex Trader
114538
Forex Trader  
is that not possible because when I try to test the strategy metatrader freezes up.

Make sure that the history price data is available for tested time interval for both timeframes.