Hello xazqe,
On Macs, the Vienna Suite Audio Unit plug-ins are installed by default and cannot be deselected, this is why they are not specifically listed in the Installer.
Please check in /Library/Audio/Plug-Ins/Components/ - you should be able to find the Vienna Suite AU components there!
Generally, please make sure to allow all your music applications, especially Logic, to control SYNSOPOS when prompted. (SYNSOPOS is an essential part of eLicenser, our copy protection).
You can also adjust this setting later on in the Automation tab (System Preferences > Security & Privacy > Automation - please see screenshot)
If the Vienna Suite plug-ins are still not available in Logic, you may need to delete your AU cache file, which will force Logic to re-scan for plug-ins the next time you launch it:
1. Quit Logic Pro X.
2. Click on your Desktop wallpaper to focus the Finder.
3. Click on Go in the menu bar, hold down the Option key on your keyboard, and choose Library from the Go menu. This will take you to the User(!) Library folder
4. Once inside the User Library folder, go to the Caches folder and then the AudioUnitCache folder.
5. Drag this file to the trash: com.apple.audiounits.cache
6. Empty the trash.
7. Restart your computer.
8. Restart Logic X.
Does that make a difference?
Best, Marnix