Problem with CustomDialogGui

[rmonic79]

hi guys i have a big problem with this marvellous module. I want to reset scrollstate not only when the dialogue stop but each time after a return in the dialogue. I have it works like this:

Code: ags

@15
Bibl:Lo si incontra spesso in giro mentre vaga senza meta leggendo un libro...
Bibl:... con un' espressione da suicidio...
  CDG.scroll_from =0;
return

but i have to put it in every dialogue option of the game, i didn't find any way to create an if statement in the global script to check if dialogues are stopping or return. Can someone help me?