Is there any way to change the number of a variable with a command?

[Dieeeeeeeeeeeeee]

options:
	timer: 2

command /timer <number>:
  trigger:
    set {@timer} to arg-1

every {@timer} seconds:
	broadcast "a"
    
 

i'm trying to set the variable with a command but it just gives me errors.

Error:

Can't understand this condition/effect: set 2 to arg-1
line 6: set {@timer} to arg-1

 

[MrTibo]

You can store it in a variable instead of an option

[M4RK7000]

I don't know how you could mention a variable within an event declaration, but for the first few lines this could be a good starting point:

variables:
	{timer} = 2

command /timer <number>:
  trigger:
    set {timer} to arg-1