Mmh, I'm sorry but how do you install this on a mac? I'm totally lost because I have the impression it only works on windows (or I totally messed up my csp
) could you show me how to do it please?
Thanks 
Sorry for the late reply Pipapo!
I downloaded the translation that NeroNero made and checked exclusively the Clip Studio Paint folder (since I don't have the rest of the programs that NeroNero kindly translated too). If I don't remember bad there was a folder named "other" with three archives inside. Those are the ones you need to paste inside the Clip Studio Paint > Show packet content > Contents > Resources > Other.
Sorry if I missed any step (it did a couple of months ago and I don't have it fresh), just look out to the small guides that NeroNero or Trev already made, they explain it much better than I and it's just simply the same procedure.
...
I have a couple of questions if anyone is so kind to lend me a hand...
I saw that
the english version of Clip Studio has some downloadable content (some materials for comics and the like) but after downloading some of them and trying to install the materials, I encountered a problem. (Maybe the MS5 work too, I don't have a clue)
Apparently my copy of CSP doesn't have a "Install materials" option under the Clip Studio tab.
Maybe I'm looking at the wrong place, but any of the other tabs have that option and I'm working with the 1.3.0 version of CSP.I also wanted to ask if someone know how to export my current materials... I have a huge set of pens and coloring brushes and I'm afraid to lose if I install those new materials. I believe I have read somewhere that after installing a new set materials, the ones you previously have get deleted.
Feel free to correct me if I'm wrong.
Sorry for the long post!