Can i use constants as global variables in mq5

[Domeonline]

Hi All,

is it possible to turn a constant into a global variable?

The reason is that I have an EA attached to a lot of charts.

Changing now an input manually in all instruments takes ages and can lead to human errors.

So my idea is to use a script which updates all in one go.
But the script can't directly use inputs/constants it needs global variables.

If there is another route to achieve this I'm also happy to test this...

Thanks!

[sktsec]

Try the terminal global variable as the shared input

You don't even need a script

[Domeonline]

@sktsec
Amazing!!
Thanks a lot for the tip, that's a game changer!

I attached the terminal block to the "on Init" tab. I read somewhere that the files for terminal variables stay only for 30 days. You think I have to redeploy it every month?

[sktsec]

"terminal variables stay only for 30 days" probably means after you closing the MT4/M5

[Domeonline]

Excellent! Thanks it works fine now. I even managed to change the global variables with a telegram message.