Posted by LordOfBikes on May 28, 2020; 7:04pm
URL: https://forum.librecad.org/No-library-browser-LibreCAD-2-1-3-OSX-Catalina-tp5718990p5719003.html

I have tested latest LibreCAD in High Sierra and it worked as expected.
Subfolders in the library browser open or close with double left click on the folder name or single left click on the small triangle left side of the folder name.

When Insert Image doesn't work, you can try to upload your screenshot with More v -> Upload a file