Thanks for the help so far guys. There is no 'install extensions' button at Window>Preferences>Extensions. See attachment.

Thanks for the help so far guys. There is no 'install extensions' button at Window>Preferences>Extensions. See attachment.

Good day guys,
I can't get .rbz files to work in my sketchup program. I download them straight into my SU8?plugins folder but when i start su8 they don't appear in windows/preferences/extension. am i doing anything wrong?
thank you