You might want to try this: Use the JBridger tool to wrap the plugins into a folder. Then move that folder somewhere where your regular plugins are not. For instance: if Studio One 4 scans all your plugins from Program files/ VST, move the folder you wrapped all your 32bit plugins in to the root folder Program Files.
Now, go into you preferences (Studio One/Options/Locations) click "Add" and add the folder where all the wrapped plugins are from JBridge.
After doing so, Studio One 4 will automatically rescan for plugins. After it has finished scanning you will notice that the Jbridge VST's aren't showing in your browser or anywhere in Studio One 4 for that matter. DONT FRET...go to the next step.
Go to a track and attempt to add a plugin onto the channel. On top of the list of VST's / plugins, you'll see SORT BY : FLAT FOLDER VENDOR... Click on VENDOR.You should see folders that look like so [jbridge] Vendor name etc. IF you open those folders, all your 32bit plugins from that vendor are in there and ready to be loaded in Studio One 4.