In Omnisphere’s Patch Browser, Keyscape sounds are presented in a manner that conforms to Omnisphere’s Patch organization, which is slightly different than that in Keyscape.
After selecting the Keyscape Library from the Directory menu, select “Keyboards” under Category.
The second Browser filter is Type, under which you’ll see the list of types originally displayed in Keyscape’s top pane.
The third filter is Model, which will display the list of models displayed in Keyscape’s Model menu.