Hi there,
after problems it works now...except MKS-20 E Piano 2.db is missing

You need this:
Omnisphere Software 2.3.1
Omnisphere Soundsources v2.0.1c
Omnisphere Patches v2.3.0c

Try to delete zmap.index file......omnisphere will create new one

Hi,
after unpacking, i have moved subfolder Keyscape to folder STEAM.
This Keyscape folder contains 4 subfolders:defaults, documantation,
settings,soundsources. Then I have moved all db files to:
STEAM\Keyscape\Soundsources\Factory\Keyscape Library\Keyboards

good luck