Silent night for Ermle 451-050H

[eurotrast]

Hello everyone, I bought the kit for the night silence (for ermle 451-050h), I was hoping to find images I have of the text explaining how to add it to the "ermle 451-050h".
I'd be grateful if I could find news to mount it.
I tried to watch the movies "ermle of tascione" (really beautiful) but I do not understand the language and only from the images I can not understand where and how to mount it.
Can someone help Me.
Thank you for your attention,
Gianni