In general, updated for game version 1.12
The Witcher 3: Wild Hunt / The Witcher 3: Wild Hunt: Cheat (Additional slots for skills) [2.3] Free Download
The bottom line is that it adds the desired number of slots for skills, for example, you can put at least all the skills that are open, depending on how many slots you have set in the game settings.
1. Installation
Unpack files from the archive to the “mods” folder in the game directory.
If it is absent, because this is your first mod, create…
2. Old game saves and new game+
The mod can be used with old saves before the mod, and indeed the saves of previous versions.
And you can adjust the number of slots in the game settings, in the game parameters section (well, or the gameplay, in my opinion, the same thing)
Ask questions here in the comments.
Like that, somehow