Waves has one of the worst arrangements (if you can call it that) regarding presets. I find no way to get presets into a folder where all the plugins will see them. It is really terrible. Presets seem scattered all over my drive, but are not all used.
ALL Waves presets need to originate via ONE folder that is readily accessible, not some system folder that no one should be looking at. On Windows, Documents\Waves\Presets would be fine, or better, let ME decide where to put them… FOR ALL WAVES PLUGINS!