How to Background animation?

[DaaMonkey]

Hello, I'm trying to understand how to animate a @back. I've tried to use @animate or any other conditions. What I'm trying to do is:

• Animate the appearance of a letter (@back ClosedLetter id:x)
• Wait for the Player input (using @wait i)
• Animate the appearance and posY movements of another letter (@back OpenLetter id:x)
• Open a printer
• Profit

Any idea?

[idaot]

I recommend reading about command parameters in the command API to get a better understanding of how each parameter can be configured for animations/transitions: https://naninovel.com/api/