[Robin De man]

I made a small setup with the linear function in, maybe it helps.
https://www.dropbox.com/s/y6cy1kveamifw1g/transparant-position.zip?dl=0

its a AE cc 2018 file

gr Robin

[Robin De man]

Is it an option to use the linear function?

var o = transform.opacity;
var objBx = thisComp.layer("Object B").transform.position[0];
var objBy = thisComp.layer("Object B").transform.position[1];
var objPos = objBx + objBy;

o = linear(objPos, 0,1000, 0, 100);

[Robin De man]

if I understand you correctly if could be something like this:

if(hisComp.layer(L).effect(1)(1).name == "Checkbox" && hisComp.layer(L).effect(1)(1) == 1)
{
do something because the checkbox is true
}
else if(hisComp.layer(L).effect(1)(1).name == "Slider" && hisComp.layer(L).effect(1)(1).value >= yourvalue)
{
do something because your sliders value is above a certain value
}

[Robin De man]

Thanks, this helped a lot.

[Robin De man]

If i’m not mistaken you can use index

marker.key(index)

Greetz Robin