Problem with off line charts

Hi I'm writing an expert that runs on M2 off line chart.
Now I'm trying to recall a number from another off line chart, M3, but I'm not able.

I would expect to write the following

iCustom(NULL,PERIOD_M3,"Pippo",0,0)

but I don't find "PERIOD_M3" in the choice window.

How can I solve?
Thank you!

Put a define statement in the first part of the program, like this.

#define PERIOD_M3 3

I'm not sure if the program will run properly, but it will compile and give you a chance to check things.

Thank you!

I believe you'll need to use zero in the time frame parameter of iCustom when used on offline charts with a non-standard period.