Copy the .nki files into your Ethera Gold 2.5 Folder.
21_Core Synth - CyberWorld
22_ActionSynth - CyberWorld
23_VocalSynth - CyberWorld
24_CLARA PHRASES - CYBERWORLD
25_DANIELE PHRASES - CYBERWORLD
26_ACTION SYNTH REV - CYBERWORLD

Please run the Snapshot installer to install the presets.
If prompted open Settings - Security & Privacy and click 'Open Anyway' to run the Snapshot Preset installer on Mac.
NB:Windows Users
Before you run the Snapshot installer, disable Microsoft On Drive.
If you have any problems with the installer you can manually copy the content of the folder _snapshots into this system path:
Windows:
C:/Users/<yourname>/Documents/Native Instruments/ User Content/Kontakt
MAC:
MacOs/Users/<yourname>/Documents/Native Instruments/ User Content/Kontakt