Hello johndeereplc

I did a short test and it works in my WinCC V17 Prof RT. (latest Upd)

here the basic FAQ:

https://support.industry.siemens.com/cs/de/en/view/24074628

you need always the correct context/object.

Only if your script runs in the same screen context you can use Layer....

If you are in a different screen context like in another screenwindow then you have to go to the right screen context and use the correct screen object

obj.Layers.....

Number starts always with 1 here

-> Layers(2) is layer 1 in engineering (runtime starts with 1 engineering starts with 0)

Bye Murof