If I understand you correctly, you want the Browser > Effects > Folder view to allow for you to create a custom Folder called, for example, "Distortion Custom", and in there, you'd want to move, for example, the following presets ONLY (rather than the entire plugins):
SoundToys > Decapitator > Guitar > Beefy G 2
SoundToys > Decapitator > User > Awesome Distortion
PreSonus > RedlightDist > Big Meanie
Is that what you're suggesting ? And of course, you want to be able to achieve this right inside the Browser in S1, rather than having to navigate to the "presets" and "plugins" folders inside your computer's and/or user's hard drive (copy/paste, move presets around these folders, etc.)—is that all correct ?