Davide, Great Job on manual !
I have read once but will print a latest version and keep reading.
A few simple advises to improve.
First - add a Quick Start Chapter - just for beginners, who do not use to read manuals but would jump to details. If it will be references to certain pages with explanations, would be a kind of "manual overview in short form". In future would be add more pictures and some advises there...
Also -> terminology. In the 3D printing world is not established yet a terminology set which uniformly represent a same features in different slicers and even hardware. Moreover, it is difficult to start translation without a development vocabulary of the future translation. So, a terminology need to be expanded to almost any term in the screen (perhaps ask developers to give a list of inputs and messages, which would be a good start to generate terminology list). Also, as separate chapter would be a hardware terminology.
Nice approach to make pictures, explanations under pictures really help !
So far from the manual I do not figure-out how to rename "simple printer", 'style", etc. - do you know how? please explain.
Very confusing a first experience in KS with a Style and Material tabs - all fields need to be explain in details. I even start to create my own guide how to manage those tabs. perhaps something like that would be in Quick Guide section.
I personally like how you explain with pictures Skirt, Grid, Brim, etc. All need to be explain a similar way.
I know, It is difficult to write a close to complete manual and it always a continuum rather then final product. So, I offer my help - if you can determine a specific area, which need to be done and frame work what need to be done, I am personally would participate in this work.
Further more, you can posted a list of open areas which need to be done, and i think people would be donate time, which will shorten a total delivery time and would be benefit to community.
Vlad