The only one I really need to have the side chain for is the waves F6. I worked on Logic 10.4.3 and if I remember right it was Waves V9. The new version is Waves 14, I wonder if it's Waves that have changed the plugin. Some other compressors from Plugin Alliance, Analogue obession etc do have the side chain, just not the 1 plugin I really need it on. Typical!