[NTG-context] Modules installation in a ConTeXt LMTX distribution

Hello everybody, on my computers (a MacBook Pro with macOS 10.13.6 and a Mac mini with macOS 10.15) I have installed a ConTeXt Standalone distribution and a ConTeXt LMTX distribution. However, while following the directions contained here https://wiki.contextgarden.net/Modules#ConTeXt_LMTX the procedure to install the modules in the LMTX is not successful. Are the indications correct? Do any of you want to write them here? Thank you very much! Tommaso