I cannot run this plugin on my MacbookPro with Catalina 10.15.7.
The first time I run the plugin it shows the following error "“libboost_system.dylib” cannot be opened because the developer cannot be verified.macOS cannot verify that this app is free from malware.SweetHome3D created this file today at 14:54.".

I'm running the Mac App Store version of sh3d.

How can I make MacOS understand that these files are safe ?

Thanks.