how can I do to call an object with a line of code ?

Hello (excuse my english),

how can I do to call an object with a line of code ?

for example : Event > On start layout > player&"global variable x" > set visible > true

it's possible ?

Thank you.

Yes, In construct the term is "picking" an object. It is a way of specifying which particular object or objects you want to apply an action to.

So in your case you would want to do

On start of layout ->

(sub event) System Pick by Evaluate -> Player.name = GlobalVariable -> apply actions

you can "pick" the player by its instance variable "name" or its UID, or a alot of other ways as well.

Thank you !