How to use variables??

[GarciaTor]

Hi, I'm not sure how to use variables, maybe someone could help me, please??? The original code is:

gov_pol.2 = {
    type = state_event
    title = "gov_pol.2.t"
    hidden = yes

    trigger = {
        exists = governor_or_ruler
    }

    weight_multiplier = {
        modifier = {
            add = {
                value = governor_or_ruler.finesse
                divide = 2
            }
        }
        ...
    }
    ...
}

And I wanna know if it is possible to use a variable instead like this:

gov_pol.2 = {
    ...
    set_variable = {
        name = new_var
        value = governor_or_ruler.finesse
    }

    weight_multiplier = {
        modifier = {
            add = {
                value = var:new_var
                divide = 2
            }
        }
        ...
    }
    ...
}